Here are some conferences on climate change and related issues, specially designed to get mathematicians interacting with scientists who work on these things! If you know of any more coming up, please let me know. These ones are sponsored by the Mathematics and Climate Research Network, a US-based organization, but there are probably others.

• **Society for Industrial and Applied Mathematics (SIAM) Conference on Applications of Dynamical Systems**, Snowbird, Utah, US, 22-26 May, 2011. Organized by Jonathan Dawes and Vivien Kirk.

Climate modeling and data assimilation are among the themes of this conference, which is aimed at starting communication between mathematicians who develop dynamical systems techniques and the applied scientists who use them.

• **Mathematical Biosciences Institute (MBI) Workshop on Ocean Ecologies and their Physical Habitats in a Changing Climate**, Columbus, Ohio, US, June 2011. Organized by Ken Golden, Chris Jones, Hans Kaper, and Mary Lou Zeeman.

The goal of this workshop is to bring together biologists studying ocean and polar ecologies; oceanographers, biogeochemists, and climate scientists studying the changing physical habitats; and mathematicians with ecological and physical expertise. The interactions between ocean ecological systems and their physical environments may dramatically impact both marine biodiversity and the planetary response to the changing atmosphere. The types of mathematics used to model ecological and physical processes are typically quite different. The team organizing this workshop anticipates interesting new mathematical challenges arising from combining these different approaches. The workshop will focus on two main themes:

1) polar and sea ice ecologies;

2) phytoplankton and the carbon cycle.

• **Minisymposium on the Dynamics of the Earth’s Climate**, as part of the International Congress on Industrial and Applied Mathematics (ICIAM), Vancouver, British Columbia, July 2011.

Organized by Hans G. Kaper, Mary C. Silber and Mary Lou Zeeman.

The speakers in this mini-symposium will highlight some interesting mathematical problems that have come from climate science and can be addressed with techniques developed in the dynamical systems community.

• **Institute of Mathematics and its Applications (IMA) Conference on Mathematics of the Climate System**, University of Reading, United Kingdom, 12-15 September, 2011. Organized by Paul Williams, Colin Cotter, Mike Cullen, Mike Davey, Christopher Ferro, John Huthnance and David Stainforth.

This conference is about the construction and use of mathematical models of the climate system. The conference will focus on three related topics:

1) the extraction of mathematical models from climate data and climate-model output (homogenisation, stochastic model reduction, bistability and metastable states, low frequency variability, data-driven coarse-graining, set-oriented methods, trend identification, time-series analysis);

2) reduced models and their dynamics (linear response theory, bifurcations, extreme events, uncertainty);

3) testing hypotheses about the climate system using statistical frameworks (emulators, Bayesian methods, nonparametric methods, equitability).