The depth of seasonal melting in areas covered by permafrost may increase by as much as 50 percent by 2050, the bank forecast. (treehugger.com)
Despite the satellite's generally broad focus, its sensors are able to measure CO2 concentrations in the air to within about 1 part per million in areas covering 3 square kilometers or less. (sciencemag.org)
You can also start off with a very large area covered with paper, and then gradually decrease that area. (chai-online.org)