The latest edition of Our Changing Planet, USGCRP's annual report to Congress, highlights progress in advancing science, informing decisions, conducting assessments, and engaging with diverse audiences. The report also spotlights interagency priority areas, including climate predictions, global change in the Arctic, water extremes, and actionable science.
PostedMay 6, 2015
Oceans, Physical Climate, Observations, Mitigation, Land Use & Land Cover, Coasts, Ecosystems & Biodiversity, Carbon Cycle, Arctic, Agriculture & Food, Energy, Cities & Infrastructure, Indicators, Human Health, Adaptation
PostedJun 1, 2012
Physical Climate, Observations, Carbon Cycle, Arctic
The concentration of carbon dioxide in the atmosphere of Barrow, Alaska, reached 400 parts per million (ppm) this spring, according to NOAA measurements, the first time a monthly average measurement for the greenhouse gas attained the 400 ppm mark in a remote location.