The Irreversible Momentum of Clean Energy

17 January, 2017

The president of the US recently came out with an article in Science. It’s about climate change and clean energy:

• Barack Obama, The irreversible momentum of clean energy, Science, 13 January 2017.

Since it’s open-access, I’m going to take the liberty of quoting the whole thing, minus the references, which provide support for a lot of his facts and figures.

The irreversible momentum of clean energy

The release of carbon dioxide (CO2) and other greenhouse gases (GHGs) due to human activity is increasing global average surface air temperatures, disrupting weather patterns, and acidifying the ocean. Left unchecked, the continued growth of GHG emissions could cause global average temperatures to increase by another 4°C or more by 2100 and by 1.5 to 2 times as much in many midcontinent and far northern locations. Although our understanding of the impacts of climate change is increasingly and disturbingly clear, there is still debate about the proper course for U.S. policy — a debate that is very much on display during the current presidential transition. But putting near-term politics aside, the mounting economic and scientific evidence leave me confident that trends toward a clean-energy economy that have emerged during my presidency will continue and that the economic opportunity for our country to harness that trend will only grow. This Policy Forum will focus on the four reasons I believe the trend toward clean energy is irreversible.

ECONOMIES GROW, EMISSIONS FALL

The United States is showing that GHG mitigation need not conflict with economic growth. Rather, it can boost efficiency, productivity, and innovation. Since 2008, the United States has experienced the first sustained period of rapid GHG emissions reductions and simultaneous economic growth on record. Specifically, CO2 emissions from the energy sector fell by 9.5% from 2008 to 2015, while the economy grew by more than 10%. In this same period, the amount of energy consumed per dollar of real gross domestic product (GDP) fell by almost 11%, the amount of CO2 emitted per unit of energy consumed declined by 8%, and CO2 emitted per dollar of GDP declined by 18%.

The importance of this trend cannot be overstated. This “decoupling” of energy sector emissions and economic growth should put to rest the argument that combatting climate change requires accepting lower growth or a lower standard of living. In fact, although this decoupling is most pronounced in the United States, evidence that economies can grow while emissions do not is emerging around the world. The International Energy Agency’s (IEA’s) preliminary estimate of energy related CO2 emissions in 2015 reveals that emissions stayed flat compared with the year before, whereas the global economy grew. The IEA noted that “There have been only four periods in the past 40 years in which CO2 emission levels were flat or fell compared with the previous year, with three of those — the early 1980s, 1992, and 2009 — being associated with global economic weakness. By contrast, the recent halt in emissions growth comes in a period of economic growth.”

At the same time, evidence is mounting that any economic strategy that ignores carbon pollution will impose tremendous costs to the global economy and will result in fewer jobs and less economic growth over the long term. Estimates of the economic damages from warming of 4°C over preindustrial levels range from 1% to 5% of global GDP each year by 2100. One of the most frequently cited economic models pins the estimate of annual damages from warming of 4°C at ~4% of global GDP, which could lead to lost U.S. federal revenue of roughly $340 billion to $690 billion annually.

Moreover, these estimates do not include the possibility of GHG increases triggering catastrophic events, such as the accelerated shrinkage of the Greenland and Antarctic ice sheets, drastic changes in ocean currents, or sizable releases of GHGs from previously frozen soils and sediments that rapidly accelerate warming. In addition, these estimates factor in economic damages but do not address the critical question of whether the underlying rate of economic growth (rather than just the level of GDP) is affected by climate change, so these studies could substantially understate the potential damage of climate change on the global macroeconomy.

As a result, it is becoming increasingly clear that, regardless of the inherent uncertainties in predicting future climate and weather patterns, the investments needed to reduce emissions — and to increase resilience and preparedness for the changes in climate that can no longer be avoided — will be modest in comparison with the benefits from avoided climate-change damages. This means, in the coming years, states, localities, and businesses will need to continue making these critical investments, in addition to taking common-sense steps to disclose climate risk to taxpayers, homeowners, shareholders, and customers. Global insurance and reinsurance businesses are already taking such steps as their analytical models reveal growing climate risk.

PRIVATE-SECTOR EMISSIONS REDUCTIONS

Beyond the macroeconomic case, businesses are coming to the conclusion that reducing emissions is not just good for the environment — it can also boost bottom lines, cut costs for consumers, and deliver returns for shareholders.

Perhaps the most compelling example is energy efficiency. Government has played a role in encouraging this kind of investment and innovation. My Administration has put in place (i) fuel economy standards that are net beneficial and are projected to cut more than 8 billion tons of carbon pollution over the lifetime of new vehicles sold between 2012 and 2029 and (ii) 44 appliance standards and new building codes that are projected to cut 2.4 billion tons of carbon pollution and save $550 billion for consumers by 2030.

But ultimately, these investments are being made by firms that decide to cut their energy waste in order to save money and invest in other areas of their businesses. For example, Alcoa has set a goal of reducing its GHG intensity 30% by 2020 from its 2005 baseline, and General Motors is working to reduce its energy intensity from facilities by 20% from its 2011 baseline over the same timeframe. Investments like these are contributing to what we are seeing take place across the economy: Total energy consumption in 2015 was 2.5% lower than it was in 2008, whereas the economy was 10% larger.

This kind of corporate decision-making can save money, but it also has the potential to create jobs that pay well. A U.S. Department of Energy report released this week found that ~2.2 million Americans are currently employed in the design, installation, and manufacture of energy-efficiency products and services. This compares with the roughly 1.1 million Americans who are employed in the production of fossil fuels and their use for electric power generation. Policies that continue to encourage businesses to save money by cutting energy waste could pay a major employment dividend and are based on stronger economic logic than continuing the nearly $5 billion per year in federal fossil-fuel subsidies, a market distortion that should be corrected on its own or in the context of corporate tax reform.

MARKET FORCES IN THE POWER SECTOR

The American electric-power sector — the largest source of GHG emissions in our economy — is being transformed, in large part, because of market dynamics. In 2008, natural gas made up ~21% of U.S. electricity generation. Today, it makes up ~33%, an increase due almost entirely to the shift from higher-emitting coal to lower-emitting natural gas, brought about primarily by the increased availability of low-cost gas due to new production techniques. Because the cost of new electricity generation using natural gas is projected to remain low relative to coal, it is unlikely that utilities will change course and choose to build coal-fired power plants, which would be more expensive than natural gas plants, regardless of any near-term changes in federal policy. Although methane emissions from natural gas production are a serious concern, firms have an economic incentive over the long term to put in place waste-reducing measures consistent with standards my Administration has put in place, and states will continue making important progress toward addressing this issue, irrespective of near-term federal policy.

Renewable electricity costs also fell dramatically between 2008 and 2015: the cost of electricity fell 41% for wind, 54% for rooftop solar photovoltaic (PV) installations, and 64% for utility-scale PV. According to Bloomberg New Energy Finance, 2015 was a record year for clean energy investment, with those energy sources attracting twice as much global capital as fossil fuels.

Public policy — ranging from Recovery Act investments to recent tax credit extensions — has played a crucial role, but technology advances and market forces will continue to drive renewable deployment. The levelized cost of electricity from new renewables like wind and solar in some parts of the United States is already lower than that for new coal generation, without counting subsidies for renewables.

That is why American businesses are making the move toward renewable energy sources. Google, for example, announced last month that, in 2017, it plans to power 100% of its operations using renewable energy — in large part through large-scale, long-term contracts to buy renewable energy directly. Walmart, the nation’s largest retailer, has set a goal of getting 100% of its energy from renewables in the coming years. And economy-wide, solar and wind firms now employ more than 360,000 Americans, compared with around 160,000 Americans who work in coal electric generation and support.

Beyond market forces, state-level policy will continue to drive clean-energy momentum. States representing 40% of the U.S. population are continuing to move ahead with clean-energy plans, and even outside of those states, clean energy is expanding. For example, wind power alone made up 12% of Texas’s electricity production in 2015 and, at certain points in 2015, that number was >40%, and wind provided 32% of Iowa’s total electricity generation in 2015, up from 8% in 2008 (a higher fraction than in any other state).

GLOBAL MOMENTUM

Outside the United States, countries and their businesses are moving forward, seeking to reap benefits for their countries by being at the front of the clean-energy race. This has not always been the case. A short time ago, many believed that only a small number of advanced economies should be responsible for reducing GHG emissions and contributing to the fight against climate change. But nations agreed in Paris that all countries should put forward increasingly ambitious climate policies and be subject to consistent transparency and accountability requirements. This was a fundamental shift in the diplomatic landscape, which has already yielded substantial dividends. The Paris Agreement entered into force in less than a year, and, at the follow-up meeting this fall in Marrakesh, countries agreed that, with more than 110 countries representing more than 75% of global emissions having already joined the Paris Agreement, climate action “momentum is irreversible”. Although substantive action over decades will be required to realize the vision of Paris, analysis of countries’ individual contributions suggests that meeting mediumterm respective targets and increasing their ambition in the years ahead — coupled with scaled-up investment in clean-energy technologies — could increase the international community’s probability of limiting warming to 2°C by as much as 50%.

Were the United States to step away from Paris, it would lose its seat at the table to hold other countries to their commitments, demand transparency, and encourage ambition. This does not mean the next Administration needs to follow identical domestic policies to my Administration’s. There are multiple paths and mechanisms by which this country can achieve — efficiently and economically — the targets we embraced in the Paris Agreement. The Paris Agreement itself is based on a nationally determined structure whereby each country sets and updates its own commitments. Regardless of U.S. domestic policies, it would undermine our economic interests to walk away from the opportunity to hold countries representing two-thirds of global emissions — including China, India, Mexico, European Union members, and others — accountable. This should not be a partisan issue. It is good business and good economics to lead a technological revolution and define market trends. And it is smart planning to set long term emission-reduction targets and give American companies, entrepreneurs, and investors certainty so they can invest and manufacture the emission-reducing technologies that we can use domestically and export to the rest of the world. That is why hundreds of major companies — including energy-related companies from ExxonMobil and Shell, to DuPont and Rio Tinto, to Berkshire Hathaway Energy, Calpine, and Pacific Gas and Electric Company — have supported the Paris process, and leading investors have committed $1 billion in patient, private capital to support clean-energy breakthroughs that could make even greater climate ambition possible.

CONCLUSION

We have long known, on the basis of a massive scientific record, that the urgency of acting to mitigate climate change is real and cannot be ignored. In recent years, we have also seen that the economic case for action — and against inaction — is just as clear, the business case for clean energy is growing, and the trend toward a cleaner power sector can be sustained regardless of near-term federal policies.

Despite the policy uncertainty that we face, I remain convinced that no country is better suited to confront the climate challenge and reap the economic benefits of a low-carbon future than the United States and that continued participation in the Paris process will yield great benefit for the American people, as well as the international community. Prudent U.S. policy over the next several decades would prioritize, among other actions, decarbonizing the U.S. energy system, storing carbon and reducing emissions within U.S. lands, and reducing non-CO2 emissions.

Of course, one of the great advantages of our system of government is that each president is able to chart his or her own policy course. And President-elect Donald Trump will have the opportunity to do so. The latest science and economics provide a helpful guide for what the future may bring, in many cases independent of near-term policy choices, when it comes to combatting climate change and transitioning to a clean energy economy.


Saving Climate Data (Part 3)

23 December, 2016

You can back up climate data, but how can anyone be sure your backups are accurate? Let’s suppose the databases you’ve backed up have been deleted, so that there’s no way to directly compare your backup with the original. And to make things really tough, let’s suppose that faked databases are being promoted as competitors with the real ones! What can you do?

One idea is ‘safety in numbers’. If a bunch of backups all match, and they were made independently, it’s less likely that they all suffer from the same errors.

Another is ‘safety in reputation’. If a bunch of backups of climate data are held by academic institutes of climate science, and another are held by climate change denying organizations (conveniently listed here), you probably know which one you trust more. (And this is true even if you’re a climate change denier, though your answer may be different than mine.)

But a third idea is to use a cryptographic hash function. In very simplified terms, this is a method of taking a database and computing a fairly short string from it, called a ‘digest’.

740px-cryptographic_hash_function-svg

A good hash function makes it hard to change the database and get a new one with the same digest. So, if the person owning a database computes and publishes the digest, anyone can check that your backup is correct by computing its digest and comparing it to the original.

It’s not foolproof, but it works well enough to be helpful.

Of course, it only works if we have some trustworthy record of the original digest. But the digest is much smaller than the original database: for example, in the popular method called SHA-256, the digest is 256 bits long. So it’s much easier to make copies of the digest than to back up the original database. These copies should be stored in trustworthy ways—for example, the Internet Archive.

When Sakari Maraanen made a backup of the University of Idaho Gridded Surface Meteorological Data, he asked the custodians of that data to publish a digest, or ‘hash file’. One of them responded:

Sakari and others,

I have made the checksums for the UofI METDATA/gridMET files (1979-2015) as both md5sums and sha256sums.

You can find these hash files here:

https://www.northwestknowledge.net/metdata/data/hash.md5

https://www.northwestknowledge.net/metdata/data/hash.sha256

After you download the files, you can check the sums with:

md5sum -c hash.md5

sha256sum -c hash.sha256

Please let me know if something is not ideal and we’ll fix it!

Thanks for suggesting we do this!

Sakari replied:

Thank you so much! This means everything to public mirroring efforts. If you’d like to help further promoting this Best Practice, consider getting it recognized as a standard when you do online publishing of key public information.

1. Publishing those hashes is already a major improvement on its own.

2. Publishing them on a secure website offers people further guarantees that there has not been any man-in-the-middle.

3. Digitally signing the checksum files offers the best easily achievable guarantees of data integrity by the person(s) who sign the checksum files.

Please consider having these three steps included in your science organisation’s online publishing training and standard Best Practices.

Feel free to forward this message to whom it may concern. Feel free to rephrase as necessary.

As a separate item, public mirroring instructions for how to best download your data and/or public websites would further guarantee permanence of all your uniquely valuable science data and public contributions.

Right now we should get this message viral through the government funded science publishing people. Please approach the key people directly – avoiding the delay of using official channels. We need to have all the uniquely valuable public data mirrored before possible changes in funding.

Again, thank you for your quick response!

There are probably lots of things to be careful about. Here’s one. Maybe you can think of more, and ways to deal with them.

What if the data keeps changing with time? This is especially true of climate records, where new temperatures and so on are added to a database every day, or month, or year. Then I think we need to ‘time-stamp’ everything. The owners of the original database need to keep a list of digests, with the time each one was made. And when you make a copy, you need to record the time it was made.


Azimuth Backup Project (Part 1)

16 December, 2016

This blog page is to help organize the Azimuth Environmental Data Backup Project, or Azimuth Backup Project for short. This is part of the larger but decentralized, frantic and somewhat disorganized project discussed elsewhere:

Saving Climate Data (Part 2), Azimuth, 15 December 2016.

Here I’ll just say what we’re doing at Azimuth.

Jan Galkowski is a statistician and engineer at Akamai Technologies, a company in Cambridge Massachusetts whose content delivery network is one of the world’s largest distributed computing platforms, responsible for serving at least 15% of all web traffic. He has begun copying some of the publicly accessible US government climate databases. On 11 December he wrote:

John, so I have just started trying to mirror all of CDIAC [the Carbon Dioxide Information Analysis Center]. We’ll see. I’ll put it in a tarball, and then throw it up on Google. It should keep everything intact. Using WinHTTrack. I have coordinated with Eric Holthaus via Twitter, creating, per your suggestion, a new personal account which I am using exclusively to follow the principals.

Once CDIAC is done, and checked over, I’ll move on to other sites.

There are things beyond our control, such as paper records, or records which are online but are not within visibility of the public.

Oh, and I’ve formally requested time off from work for latter half of December so I can work this on vacation. (I have a number of other projects I want to work in parallel, anyway.)

By 14 December he was wanting some more storage space. He asked David Tanzer and me:

Do either of you have a large Google account, or the “unlimited storage” option at Amazon?

I’m using WebDrive, a commercial product. What I’m (now) doing is defining an FTP map at a .gov server, and then a map to my Amazon Cloud Drive. I’m using Windows 7, so these appear as standard drives (or mounts, in *nix terms). I navigate to an appropriate place on the Amazon Drive, and then I proceed to copy from .gov to Amazon.

There is no compression, and, in order to be sure I don’t abuse the .gov site, I’m deliberately passing this over a wireless network in my home, which limits the transfer rate. If necessary, and if the .gov site permits, I could hardwire the workstation to our FIOS router and get appreciably faster transfer. (I often do that for large work files.)

The nice thing is I get to work from home 3 days a week, so I can keep an eye on this. And I’m taking days off just to do this.

I’m thinking about how I might get a second workstation in the act.

The Web sites themselves I’m downloading, as mentioned, using HTTrack. I intended to tarball-up the site structure and then upload to Amazon. I’m still working on CDIAC at ORNL. For future sites, I’m going to try to get HTTrack to mirror directly to Amazon using one of the mounts.

I asked around for more storage space, and my request was kindly answer by Scott Maxwell. Scott lives in Pasadena California and he used to work for NASA: he even had a job driving a Mars rover! He is now a site reliability engineer at Google, and he works on Google Drive. Scott is setting up a 10-terabyte account on Google Drive, which Jan and others will be able to use.

Meanwhile, Jan noticed some interesting technical problems: for some reason WebDrive is barely using the capacity of his network connection, so things are moving much more slowly than they could in theory.

Most recently, Sakari Maaranen offered his assistance. Sakari is a systems architect at Ubisecure, a firm in Finland that specializes in identity management, advanced user authentication, authorization, single sign-on, and federation. He wrote:

I have several terabytes worth in Helsinki (can get more) and a gigabit connection. I registered my offer but they [the DataRefuge people] didn’t reply though. I’m glad if that means you have help already and don’t need a copy in Helsinki.

I replied saying that the absence of a reply probably means that they’re overwhelmed by offers of help and are struggling to figure out exactly what to do. Scott said:

Hey, Sakari! Thank you for the generous offer!

I’m setting these guys up with Google Drive storage, as at least a short-term solution.

IMHO, our first order of business is just to get a copy of the data into a location we control—one that can’t easily be taken away from us. That’s the rationale for Google Drive: it fits into Jan’s existing workflow, so it’s the lowest-friction path to getting a copy of the data that’s under our control.

How about if I propose this: we let Jan go ahead with the plan of backing up the data in Drive. Then I’ll look evaluate moving it from there to whatever other location we come up with. (Or copying instead of moving! More copies is better. :-) How does that sound to you?

I admit I haven’t gotten as far as thinking about Web serving at all—and it’s not my area of expertise anyway. Maybe you’d be kind enough to elaborate on your thoughts there.

Sakari responded with some information about servers. In late January, U. C. Riverside may help me with this—until then they are busy trying to get more storage space, for wholly unrelated reasons. But right now it seems the main job is to identify important data and get it under our control.

There are a lot of ways you could help.

Computer skills. Personally I’m not much use with anything technical about computers, but the rest of the Azimuth Data Backup gang probably has technical questions that some of you out there could answer… so, I encourage discussion of those questions. (Clearly some discussions are best done privately, and at some point we may encounter unfriendly forces, but this is a good place for roaming experts to answer questions.)

Security. Having a backup of climate data is not very useful if there are also fake databases floating around and you can’t prove yours is authentic. How can we create a kind of digital certificate that our database matches what was on a specific website at a specific time? We should do this if someone here has the expertise.

Money. If we wind up wanting to set up a permanent database with a nice front end, accessible from the web, we may want money. We could do a Kickstarter campaign. People may be more interested in giving money now than later, unless the political situation immediately gets worse after January 20th.

Strategy. We should talk a bit about what to do next, though too much talk tends to prevent action. Eventually, if all goes well, our homegrown effort will be overshadowed by others, at least in sheer quantity. About 3 hours ago Eric Holthaus tweeted “we just got a donation of several petabytes”. If it becomes clear that others are putting together huge, secure databases with nice front ends, we can either quit or—better—cooperate with them, and specialize on something we’re good at and enjoy.


azimuth_logo


Saving Climate Data (Part 2)

16 December, 2016

I want to get you involved in the Azimuth Environmental Data Backup Project, so click on that for more. But first some background.

A few days ago, many scientists, librarians, archivists, computer geeks and environmental activists started to make backups of US government environmental databases. We’re trying to beat the January 20th deadline just in case.

Backing up data is always a good thing, so there’s no point in arguing about politics or the likelihood that these backups are needed. The present situation is just a nice reason to hurry up and do some things we should have been doing anyway.

As of 2 days ago the story looked like this:

Saving climate data (Part 1), Azimuth, 13 December 2016.

A lot has happened since then, but much more needs to be done. Right now you can see a list of 90 databases to be backed up here:

Gov. Climate Datasets (Archive). (Click on the tiny word “Datasets” at the bottom of the page!)

Despite the word ‘climate’, the scope includes other environmental databases, and rightly so. Here is a list of databases that have been backed up:

The Climate Mirror Project.

By going here and clicking “Start Here to Help”:

Climate Mirror.

you can nominate a dataset for rescue, claim a dataset to rescue, let everyone know about a data rescue event, or help in some other way (which you must specify). There’s also other useful information on this page, which was set up by Nick Santos.

The overall effort is being organized by the Penn Program in the Environmental Humanities, or ‘PPEHLab’ for short, headed by Bethany Wiggin. If you want to know what’s going on, it helps to look at their blog:

DataRescuePenn.

However, the people organizing the project are currently overwhelmed with offers of help! People worldwide are proceeding to take action in a decentralzed way! So, everything is a bit chaotic, and nobody has an overall view of what’s going on.

I can’t overstate this: if you think that ‘they’ have a plan and ‘they’ know what’s going on, you’re wrong. ‘They’ is us. Act accordingly.

Here’s a list of news articles, a list of ‘data rescue events’ where people get together with lots of computers and do stuff, and a bit about archives and archivists.

News

Here are some things to read:

• Jason Koebler, Researchers are preparing for Trump to delete government science from the web, Vice, 13 December 2016.

• Brady Dennis, Scientists frantically copying U.S. climate data, fearing it might vanish under Trump, Washington Post, 13 December, 2016. (Also at the Chicago Tribune.)

• Eric Holthaus, Why I’m trying to preserve federal climate data before Trump takes office, Washington Post, 13 December 2016.

• Nicole Mortillaro, U of T heads ‘guerrilla archiving event’ to preserve climate data ahead of Trump presidency, CBC News, 14 December 2016.

• Audie Kornish and Eric Holthaus, Scientists race to preserve climate change data before Trump takes office, All Things Considered, National Public Radio, 14 December 2016.

Data rescue events

There’s one in Toronto:

Guerrilla archiving event, 10 am – 4 pm EST, Saturday 17 December 2016. Location: Bissell Building, 4th Floor, 140 St. George St. University of Toronto.

There will be one in Philadelphia:

DataRescuePenn Data Harvesting, Friday–Saturday 13–14 January 2017. Location: not determined yet, probably somewhere at the University of Pennsylvania, Philadelphia.

I hear there will also be events in New York City and Los Angeles, but I don’t know details. If you do, please tell me!

Archives and archivists

Today I helped catalyze a phone conversation between Bethany Wiggin, who heads the PPEHLab, and Nancy Beaumont, head of the Society of American Archivists. Digital archivists have a lot of expertise in saving information, so their skills are crucial here. Big wads of disorganized data are not very useful.

In this conversation I learned that some people are already in contact with the Internet Archive. This archive always tries to save US government websites and databases at the end of each presidential term. Their efforts are not limited to environmental data, and they save not only webpages but entire databases, e.g. data in ftp sites. You can nominate sites to be saved here:

• Internet Archive, End of Presidential Term Harvest 2016.

For more details read this:

• Internet Archive blog, Preserving U.S. Government Websites and Data as the Obama Term Ends, 15 December 2016.


Under2 Coalition

24 November, 2016

I’ve been thinking hard about climate change since at least 2010. That’s why I started this blog. But the last couple years I’ve focused on basic research in network theory as a preliminary step toward green mathematics. Basic research is what I’m best at, and there are plenty of people working on the more immediate, more urgent aspects of climate change.

Indeed, after the Paris Agreement, I started hoping that politicians were taking this issue seriously and that we’d ultimately deal with it—even though I knew this agreement was not itself enough to keep warming below 2° C:

There is a troubling paradox at the heart of climate policy. On the one hand, nobody can doubt the historic success of the Paris Agreement. On the other hand, everybody willing to look can see the impact of our changing climate. People already face rising seas, expanding desertification and coastal erosion. They take little comfort from agreements to adopt mitigation measures and finance adaptation in the future. They need action today.

That is why the Emissions Gap Report tracks our progress in restricting global warming to 1.5 – 2 degrees Celsius above pre-industrial levels by the end of this century. This year’s data shows that overall emissions are still rising, but more slowly, and in the case of carbon dioxide, hardly at all. The report foresees further reductions in the short term and increased ambition in the medium term. Make no mistake; the Paris Agreement will slow climate change. The recent Kigali Amendment to the Montreal Protocol will do the same.

But not enough: not nearly enough and not fast enough. This report estimates we are actually on track for global warming of up to 3.4 degrees Celsius. Current commitments will reduce emissions by no more than a third of the levels required by 2030 to avert disaster. The Kigali Amendment will take off 0.5 degrees Celsius, although not until well after 2030. Action on short-lived climate pollutants, such as black carbon, can take off a further 0.5 degrees Celsius. This means we need to find another one degree from somewhere to meet the stronger, and safer, target of 1.5 degrees Celsius warming.

So, we must take urgent action. If we don’t, we will mourn the loss of biodiversity and natural resources. We will regret the economic fallout. Most of all, we will grieve over the avoidable human tragedy; the growing numbers of climate refugees hit by hunger, poverty, illness and conflict will be a constant reminder of our failure to deliver.

That’s from an annual report put out by the United Nations Environment Programme, or UNEP:

• United Nations Environment Programme, The Emissions Gap Report 2016.

As this report makes clear, we can bridge the gap and keep global warming below 2° C, if we work very hard.

But my limited optimism was shaken by the US presidential election, and especially by the choice of Myron Ebell to head the ‘transition team’ for the Environmental Protection Agency. For the US government to dismantle the Clean Power Plan and abandon the Paris Agreement would seriously threaten the fight against climate change.

Luckily, people already recognize that even with the Paris Agreement, a lot of work must happen at the ‘subnational’ level. This work will go on even if the US federal government gives up. So I want to learn more about it, and get involved somehow.

This is where the Under2 Coalition comes in.

The Under2 Coalition

California, Connecticut, Minnesota, New Hampshire, New York, Oregon, Rhode Island, Vermont and Washington have signed onto a spinoff of the Paris Climate Agreement. It’s called the Under2 Memorandum of Understanding, or Under2 MOU for short.

“Under 2” stands for two goals:

• under 2 degrees Celsius of global warming, and
• under 2 tonnes of carbon dioxide emitted per person per year.

These states have agreed to cut greenhouse gas emissions to 80-95% below 1990 levels by 2050. They’ve also agreed to share technology and scientific research, expand use of zero-emission vehicles, etc., etc.

And it’s not just US states that are involved in this! A total of 165 jurisdictions in 33 countries and six continents have signed or endorsed the Under2 MOU. Together, they form the Under2 Coalition. They represent more than 1.08 billion people and $25.7 trillion in GDP, more than a third of the global economy:

Under2 Coalition.

I’ll list the members, starting with ones near the US. If you go to the link you can find out exactly what each of these ‘sub-national entities’ are promising to do. In a future post, I’ll say more about the details, since I want Riverside to join this coalition. Jim Stuttard has already started a page about a city in the UK which is not a member of the Under2 Coalition, but has done a lot of work to figure out how to cut carbon emissions:

• Azimuth Wiki, Birmingham Green Commission.

This sort of information will be useful for other cities.

UNITED STATES

Austin
California
Connecticut
Los Angeles
Massachusetts
Minnesota
New Hampshire
New York City
New York State
Oakland City
Oregon
Portland City
Rhode Island
Sacramento
San Francisco
Seattle
Vermont
Washington

CANADA

British Columbia
Northwest Territories
Ontario
Québec
Vancouver City

MEXICO

Baja California
Chiapas
Hidalgo
Jalisco
Mexico City
Mexico State
Michoacán
Quintana Roo
Tabasco
Yucatán

BRAZIL

Acre
Amazonas
Mato Grosso
Pernambuco
Rondônia
São Paulo City
São Paulo State
Tocantins

CHILE

Santiago City

COLOMBIA

Guainía
Guaviare

PERU

Loreto
San Martín
Ucayali

AUSTRIA

Lower Austria

FRANCE

Alsace
Aquitaine
Auvergne-Rhône-Alpes
Bas-Rhin
Midi-Pyrénées
Pays de la Loire

GERMANY

Baden-Württemberg
Bavaria
Hesse
North Rhine-Westphalia
Schleswig-Holstein
Thuringia

HUNGARY

Budapest

ITALY

Abruzzo
Basilicata
Emilia-Romagna
Lombardy
Piedmont
Sardinia
Veneto

THE NETHERLANDS

Drenthe
North Brabant
North Holland
South Holland

PORTUGAL

Azores
Madeira

SPAIN

Andalusia
Basque Country
Catalonia
Navarra

SWEDEN

Jämtland Härjedalen

SWITZERLAND

Basel-Landschaft
Basel-Stadt

UNITED KINGDOM

Bristol
Greater Manchester
Scotland
Wales

AUSTRALIA

Australian Capital Territory (ACT)
South Australia

CHINA

Alliance of Peaking Pioneer Cities (represents 23 cities)
Jiangsu Province
Sichuan
Zhenjiang City

INDIA

Telangana

INDONESIA

East Kalimantan
South Sumatra
West Kalimantan

JAPAN

Gifu

NEPAL

Kathmandu Valley

KENYA

Laikipia County

IVORY COAST

Assemblée des Régions de Côte d’Ivoire (represents 33 subnationals)

NIGERIA

Cross River State

MOZAMBIQUE

Nampula

SENEGAL

Guédiawaye


Ken Caldeira on What To Do

25 January, 2016

Famous climate scientist Ken Caldeira has a new article out:

• Ken Caldeira, Stop Emissions!, Technology Review, January/February 2016, 41–43.

Let me quote a bit:

Many years ago, I protested at the gates of a nuclear power plant. For a long time, I believed it would be easy to get energy from biomass, wind, and solar. Small is beautiful. Distributed power, not centralized.

I wish I could still believe that.

My thinking changed when I worked with Marty Hoffert of New York University on research that was first published in Nature in 1998. It was the first peer-reviewed study that examined the amount of near-zero-emission energy we would need in order to solve the climate problem. Unfortunately, our conclusions still hold. We need massive deployment of affordable and dependable near-zero-emission energy, and we need a major research and development program to develop better energy and transportation systems.

It’s true that wind and solar power have been getting much more attractive in recent years. Both have gotten significantly cheaper. Even so, neither wind nor solar is dependable enough, and batteries do not yet exist that can store enough energy at affordable prices to get a modern industrial society through those times when the wind is not blowing and the sun is not shining.

Recent analyses suggest that wind and solar power, connected by a continental-scale electric grid and using natural-gas power plants to provide backup, could reduce greenhouse-gas emissions from electricity production by about two-thirds. But generating electricity is responsible for only about one-third of total global carbon dioxide emissions, which are increasing by more than 2 percent a year. So even if we had this better electric sector tomorrow, within a decade or two emissions would be back where they are today.

We need to bring much, much more to bear on the climate problem. It can’t be solved unless it is addressed as seriously as we address national security. The politicians who go to the Paris Climate Conference are making commitments that fall far short of what would be needed to substantially reduce climate risk.

Daunting math

Four weeks ago, a hurricane-strength cyclone smashed into Yemen, in the Arabian Peninsula, for the first time in recorded history. Also this fall, a hurricane with the most powerful winds ever measured slammed into the Pacific coast of Mexico.

Unusually intense storms such as these are a predicted consequence of global warming, as are longer heat waves and droughts and many other negative weather-related events that we can expect to become more commonplace. Already, in the middle latitudes of the Northern Hemisphere, average temperatures are increasing at a rate that is equivalent to moving south about 10 meters (30 feet) each day. This rate is about 100 times faster than most climate change that we can observe in the geologic record, and it gravely threatens biodiversity in many parts of the world. We are already losing about two coral reefs each week, largely as a direct consequence of our greenhouse-gas emissions.

Recently, my colleagues and I studied what will happen in the long term if we continue pulling fossil carbon out of the ground and releasing it into the atmosphere. We found that it would take many thousands of years for the planet to recover from this insult. If we burn all available fossil-fuel resources and dump the resulting carbon dioxide waste in the sky, we can expect global average temperatures to be 9 °C (15 °F) warmer than today even 10,000 years into the future. We can expect sea levels to be about 60 meters (200 feet) higher than today. In much of the tropics, it is possible that mammals (including us) would not be able to survive outdoors in the daytime heat. Thus, it is essential to our long-term well-being that fossil-fuel carbon does not go into our atmosphere.

If we want to reduce the threat of climate change in the near future, there are actions to take now: reduce emissions of short-lived pollutants such as black carbon, cut emissions of methane from natural-gas fields and landfills, and so on. We need to slow and then reverse deforestation, adopt electric cars, and build solar, wind, and nuclear plants.

But while existing technologies can start us down the path, they can’t get us to our goal. Most analysts believe we should decarbonize electricity generation and use electricity for transportation, industry, and even home heating. (Using electricity for heating is wildly inefficient, but there may be no better solution in a carbon-constrained world.) This would require a system of electricity generation several times larger than the one we have now. Can we really use existing technology to scale up our system so dramatically while markedly reducing emissions from that sector?

Solar power is the only energy source that we know can power civilization indefinitely. Unfortunately, we do not have global-scale electricity grids that could wheel solar energy from day to night. At the scale of the regional electric grid, we do not have batteries that can balance daytime electricity generation with nighttime demand.

We should do what we know how to do. But all the while, we need to be thinking about what we don’t know how to do. We need to find better ways to generate, store, and transmit electricity. We also need better zero-carbon fuels for the parts of the economy that can’t be electrified. And most important, perhaps, we need better ways of using energy.

Energy is a means, not an end. We don’t want energy so much as we want what it makes possible: transportation, entertainment, shelter, and nutrition. Given United Nations estimates that the world will have at least 11 billion people by the end of this century (50 percent more than today), and given that we can expect developing economies to grow rapidly, demand for services that require energy is likely to increase by a factor of 10 or more over the next century. If we want to stabilize the climate, we need to reduce total emissions from today’s level by a factor of 10. Put another way, if we want to destroy neither our environment nor our economy, we need to reduce the emissions per energy service provided by a factor of 100. This requires something of an energy miracle.

The essay continues.

Near the end, he writes “despite all these reasons for despair, I’m hopeful”. He is hopeful that a collective change of heart is underway that will enable humanity to solve this problem. But he doesn’t claim to know any workable solution to the problem. In fact, he mostly list reasons why various possible solutions won’t be enough.


Good News (Part 2)

25 December, 2015

 

When I visited Cambodia I went to Kompong Phluk, a village where all the houses are on stilts, and everyone knows how to swim. The villagers raise fish in the Tonlé Sap, which is the largest freshwater lake in southeast Asia. During the dry season, from November to May, this lake drains into the Mekong River near Phnom Penh. But during the monsoons, water flows back from the Mekong into the lake, and it grows six-fold in area! We took a boat ride down this muddy river into the Tonlé Sap and saw the fish farms.

In 2008, a Canadian student named Christopher Charles was working in rural Cambodia. He was living in a house on stilts. He had no electricity or running water, but lots time to sit around and think.

He started thinking about anemia.

Anemia is often caused by an iron deficiency. It makes you tired and weak. You have trouble thinking clearly. Almost half of Cambodia’s population suffers from this disease! In fact, over 3.5 billion people on our planet have anemia, and the World Bank estimates that it’s a $50 billion drain on the global GDP.

You can cure anemia with iron supplements—but they taste bad, and they often cause stomach pains, constipation, and even more disgusting problems.

So Charles had another idea: give villagers little blocks of iron to drop into their cooking pots. The iron gets released slowly as the water boils.

But at first, people hated them. They thought the iron blocks where ugly. They thought the iron blocks would scratch their pots. So they turned them into doorstops.

He kept trying. He needed a second idea: one that could make the first idea work.

He realized that in rural Cambodia almost everything revolves around fish. Fish from the Tonlé Sap provide Cambodians with 60% of their protein intake. People earn lots of their money fishing, they’re important in Khmer folklore. Even their currency—the riel—is named after a fish!

So, he made iron into “lucky fish” , shown here:

Now people are happy to put one into the pot when cooking.

One of those who has been using the fish is Sot Mot, a 60-year-old grandmother who lives just outside Phnom Penh. She drops the fish into boiling water as she chops up garlic, ginger and lemongrass for Khmer chicken soup. “Before, I felt tired and lazy and my chest shook when I was tired,” she says. “But after I use the fish, I have strength and energy to work and I sleep well, too.”

One of her grand-daughters seems to be improving, too. “Before, when I went to school I felt tired, and I didn’t do well at math, maybe the sixth in the class,” says 15-year-old Danai. “Now,” she says proudly, “I’m No. 1.”

Of course, this idea needs to be tested with scientific studies. And here’s one such study:

• Christopher V. Charles et al, Iron-deficiency anaemia in rural Cambodia: community trial of a novel iron supplementation technique, The European Journal of Public Health, 28 January 2010.

More studies are coming up.

No matter what the result finally is, it shows that paying attention to local culture can work wonders when trying to help people.

Large parts of this story are paraphrased from the following radio show, which is definitely worth listening to:

• Michael Sullivan, In Cambodia, ‘lucky’ iron fish in the pot could help fight anemia, Morning Edition, National Public Radio, 25 December 2015.