## Ivan Sudakov wins prize at Mathematics of Climate Change, Related Natural Hazards and Risks Workshop

The Workshop on **Mathematics of Climate Change, Related Natural Hazards and Risks** was held at the *Centro de Investigación en Matemáticas* (CIMAT) in Guanajuato, Mexico, from July 29th to August 2nd. It was a satellite meeting of the big 2013 Mathematical Congress of the Americas. This was the first time the three Unions- the International Mathematical Union (IMU), the International Union of Theoretical and Applied Mechanics (IUTAM) and the International Union of Geodesy and Geophysics (IUGG)- co-organized a multidisciplinary meeting. All the participants were sponsored by IMU and CIMAT. The 5-day workshop brought together about 45 early career scientists, mainly from Central and South America, and eight terrific and distinguished scientists. It was interesting that, though they use rigorous mathematical tools, a lot of the speakers had an initial, strong background in geosciences.

The workshop covered the following topics (some of which are not related to the usual topics discussed at mathematics and climate meetings):

1. Dynamics of the land surface processes and advanced mathematical tools (G. Canziani).

2. Numerical methods in climate science and geophysical fluid dynamics (R. Mechoso, O. Fuentes)

3. Data Assimilation (E. Kalnay, M. Ghil)

4. Paleoclimate (B. Rajaratnam, G. Philander, E. Tziperman)

5. Conceptual models in climate, population, economics (E. Tziperman, E. Kalnay, M. Ghil)

Susan Friedlander (co-organizer MPE2013) gave an amazing public lecture – “Mathematics of Planet Earth.”

Round table discussions were organized on four of the evenings. Two of them were of particular interest. The first focused on what is the propaganda of climate change? How can we find the balance between political issues of climate change and doing real, non-political climate science? How can mathematics improve the IPCC reports? The second discussed interdisciplinary collaboration between mathematicians and geoscientists. The introduction of the term “tipping point” to climate science generated spectacular discussion. The participants expressed a desire to have the next workshop aim to attract mathematicians conducting research in climate science.

Poster sessions were held daily. Ed Lorenz Postdoctoral Fellow Ivan Sudakov’s poster about the mathematics of thawing permafrost and Arctic climate change was awarded one of three best posters. The other two winning posters were about statistical and network approaches in climate science, from two Latin American participants. As part of the prize they each had an opportunity to give a short talk.

Ivan gives many thanks to Ilya Zaliapin, for the wonderful organization of this workshop, and to CIMAT, for its warm hospitality!!!

*Ivan Sudakov’s winning poster:*