The Latest Breaking News from Ken Caldeira

As our planet's climate heats up, so, too, does the debate about the boldest response to it: geoengineering, or the deliberate modification of the atmosphere to combat global warming.

The base of the food chain could lose much of its nutrient supply if the current collapses

Al Gore focused his 1988 presidential campaign and climate change — and the world shrugged him off

Rushing water flowing out from glaciers could spread viruses and bacteria at a much faster rate across species