Nations return to deadlocked UN climate talks Monday, with hopes that G20 leaders meeting on the other side of the world can ...

The world's warming tropical wetlands are releasing more methane than ever before, research shows — an alarming sign that the world's climate goals are slipping further out of reach. A massive surge ...

Heads of state arrived in Rio de Janeiro on Sunday for the G20 summit and will spend Monday and Tuesday addressing issues from poverty and hunger to the reform of global institutions.

India said that developing and low-income economies cannot reduce greenhouse gas emissions or adapt to their effects unless ...

This year likely will end as warmest on record, and new findings show Earth's icy places are suffering. Meanwhile, CO2 ...