Scientists monitoring the Earth's climate and environment have delivered a cascade of grim news this year, adding a sense of urgency to UN talks on how best to draw down the greenhouse gases that drive global warming.
On a dreary November morning, a small party of visitors from around the world boards a boat for an hour-long ride around what was once one of the most polluted waters in the Ruhr valley.
The world is losing its trees, but at what cost? Better estimates of deforestation and degradation could shed light on the amount of CO2 emitted, refine climate models and help developing countries better manage their forests.
The Trump administration is "committed" to limiting greenhouse gas emissions, but in ways that do not threaten energy security or market competitiveness, a US official told a UN climate conference in Bonn Thursday.
Groundwater recharge in the Western U.S. will change as the climate warms—the dry southern regions will have less and the northern regions will have more, a University of Arizona-led research team reports.