One researcher has been hiring planes to strafe the sky over the Amazon rain forest to collect the air coming off the trees, and what she is finding is cause for alarm.
The vast region may stay wet—or dry up and burn—depending on whether indigenous people want to continue to work the land
As temperatures rise sooner in spring, interdependent species in many ecosystems are shifting dangerously out of sync
Did climate changes cause civilizations to collapse?
New vaccines may not be a reason to keep smallpox stocks
Maverick meteorologist Richard S. Lindzen keeps right on arguing that human-induced global warming isn't a problem
The father of the idea that a sibling of the sun periodically wreaks havoc on Earth finds inspiration in catastrophes
