Kieran Mulvaney has written books on the Arctic and Antarctic, whaling and polar bears, and has published hundreds of articles and blog posts on wildlife, science, travel and the environment. He also is a reporter for HBO Sports. Born in Britain, he now lives in Vermont.
The lentil-sized pellets, which are highly toxic to wildlife, have swarmed nearly three quarters of Britain's coastline, with more than 100,000 of them washing up on one messy stretch.
Large-scale geoengineering interventions could cool the planet, yet the environmental costs are unclear.
A newly developed formula shows how much the planet has warmed due to human activity vs. natural forces.
Drier, warmer conditions and more people living in high-risk areas suggest a future with more disastrous fire events.
The world's cities generate 75 percent of the world's greenhouse gas emissions, but there's growing momentum to make them the focus of climate action by making emissions data available for all.
Production of synthetic chemicals is far outpacing the ability of scientists to study their effects.
The incoming administration is headed by, and filled with, people who question climate science. What should scientists do in response?