Arctic survey data trigger worldwide warning
The Catlin survey's drilled measurements and visual survey observations have enabled an estimate of the mean thickness value of Arctic summer ice, which is much thinner than previous estimates. It shows that the region is now characterised by first-year ice rather than multi-year ice.
This information sets up key scientific parameters in the bigger global climate change picture that shows changes in heating gradient between the North Pole and the Equator, a key part of the engine that drives weather systems in the northern hemisphere.
New predictions outlined by the survey that most of the summer ice will melt within 10 years mean rainfall, food production and human water supplies will be affected earlier than previously predicted.
It also means water and food security will be two big defining geopolitical issues in the decades ahead.
