Out for an afternoon hike, Veerle Bonaers and a friend stop pushing their baby and look down to their map, suddenly aware they have taken a wrong turn. 

President Joe Biden said Wednesday the United States must lead the global response to the climate crisis, as he signed a raft of orders aimed at curbing rising temperatures and announced a climate summit in April.

The United States will try to keep climate negotiations with China separate from other disagreements affecting the two countries' ties, John Kerry said Wednesday.

Nearly two-thirds of 1.2 million people polled worldwide say humanity faces a climate emergency, according to a UN survey, the largest of its kind ever undertaken.

The rate at which ice is disappearing across the world matches "worst-case climate warming scenarios", UK scientists have warned in new research.

World leaders are set to appear online on Monday at the first summit dedicated to making the planet more resilient to the effects of climate change.

Underwater divers in plastic-choked waters off the coast of Thailand snip through discarded nets tangled around a reef -- a new initiative helping protect marine life and aiding the fight against coronavirus.

President Joe Biden committed the United States to rejoining the Paris climate accord, blocked an oil pipeline project and froze Arctic drilling in a raft of executive orders signed hours after taking office Wednesday.

French President Emmanuel Macron lauded new U.S. President Joe Biden's decision to return to the Paris climate accord on Wednesday, telling him "welcome back" in a congratulatory message after his inauguration.

President Joe Biden has said he will return the United States to the Paris climate accord as soon as he takes office, and has vowed to block an oil pipeline project in a move that threatens to strain ties with Canada.