An analysis of phytoplankton shells doubles previous estimates of the amount of carbon dioxide in the atmosphere 11 million years ago.
Climate Change
Posted inNews
Experts Focus on Efforts by Cities to Deal with Climate Change
Urban areas must take political and practical considerations into account as they prepare for the effects of climate change, say experts at AGU Fall Meeting.
Posted inEditors' Vox
Perspectives on COP21
Climate change is a well-defined, global problem that nations are finally acknowledging.
Posted inNews
Greenhouse Gas Patterns Offer Promise, Puzzlement
Emissions growth of carbon dioxide has suddenly slowed, but atmospheric methane concentrations continue to soar after a long hiatus. Both trends have a bearing on climate pacts sought this week.
Posted inNews
Ted Cruz Chairs Heated Senate Hearing on Climate Change
Republican-invited witnesses reject consensus view of climate change, charge bias in federal funding. Democratic senators decry attempt to stir controversy about well-established climate findings.
Posted inEditors' Vox
AGU Editor Suggestions for Navigating the Fall Meeting, Part II
AGU's journal editors provide suggestions and recommendations of sessions and talks of particular interest.
Posted inNews
Ships Bring More Than Cargo to Arctic Waters
A probe of ballast water in ships at an Arctic port finds hitchhiking organisms that polar warming could allow to invade the region's ecosystems in less than 40 years.
Posted inScience Updates
High-Resolution Tools Advance Study of Paleoclimate Archives
HiRes2015: High Resolution Proxies of Paleoclimate; Madison, Wisconsin, 31 May to 3 June 2015
Posted inEditors' Vox
AGU Editor Suggestions for Navigating the Fall Meeting, Part I
AGU's journal editors provide suggestions and recommendations of sessions and talks of particular interest.