A 2 million Euro research initiative funded by the European Research Council (ERC) over the next five years will see scientists endeavor to reproduce the chemical exchanges between the ocean, sea ice, snow and the atmosphere in polar regions. The University of East Anglia is launching a project to predict how the Arctic will cope with global warming by constructing a sea ice chamber and using state-of-the-art computer models. The Arctic Ocean is a vast expanse of sea ice. Most of it is covered with snow for about half of the year, but climate change has caused temperatures to rise more than anywhere else in the world over the last few decades, explains UEA's Roland von Glasow. We will focus on the links between melting sea ice and snow, and the changing chemistry of the troposphere. This is important because the troposphere is home to concentrations of greenhouse gases and aerosol particles which play key roles for our climate, he adds.