Source: Science for Environment Policy
Re-routing flights to avoid the Arctic Circle may help reduce global temperatures and increase sea ice, a recent study concludes. The accompanying reduction in damages from global warming could outweigh the costs of increased fuel usage and operational changes for airlines by 47-55 times.
Arctic air is sensitive to pollution and flights over the Arctic cruise in a stable layer of the atmosphere where there is little precipitation, so black carbon and other emissions, such as greenhouse gases, become trapped and contribute to local and global warming. Black carbon is particularly influential as it absorbs the sun’s radiation and increases warming.