An international program strengthens glaciological studies in the tropical Andes, promotes collaborative projects, and develops educational programs with local universities.
In the battle of public opinion over climate change, we can play to science's strengths by shifting tactics: Instead of struggling to prove humans are to blame, let's prove denialist fantasies wrong.
New information suggests that atmospheric carbon dioxide concentration was just one of the main drivers of warming sea surface temperatures in the Pleistocene.
An idealized climate model suggests polar warming stabilizes the jet stream and reduces atmospheric blocking at midlatitudes.
Levels of greenhouse gas emissions need to be limited by midcentury to keep within a 2°C increase, a new United Nations report states.