When President Joe Biden convenes a virtual climate summit on Thursday, he faces a vexing task: how to put forward a nonbinding but symbolic goal to reduce greenhouse gas emissions that will have a tangible impact not only on climate change efforts in the U.S. but throughout the world.

The emissions target, eagerly awaited by all sides of the climate debate, will signal how aggressively Biden wants to move on climate change, a divisive and expensive issue that has riled Republicans to complain about job-killing government overreach even as some on the left worry Biden has not gone far enough to address a profound threat to the planet.

US climate envoy John Kerry met with his Chinese counterparts in Shanghai on Thursday, in the first visit to China by an official from a Biden administration seeking to re-establish America's leadership on the environment.

Roshni Thakor left school to harvest salt from a sun-baked Indian desert, a backbreaking trade practised by her ancestors for centuries but now threatened by climate change.

Noise pollution poses a long-term risk to tree populations and plant diversity that may persist even after the sources of excess noise are removed, according to research published Wednesday.

Japan will release more than a million tons of treated water from the stricken Fukushima nuclear plant into the ocean, the government said Tuesday, triggering a furious regional reaction and fierce opposition from local fishing communities.

Two small Western Australian towns suffered "widespread damage" when Cyclone Seroja struck part of the country that rarely experiences tropical storms, emergency services said Monday.

The idea of forgiving debt held by poor countries in exchange for "green" investments gained ground this week during the spring meetings of the IMF and World Bank, with concrete proposals expected in time for a global climate summit this fall.

Indonesian navy ships packed with aid arrived Thursday in a cyclone-ravaged section of the archipelago, as the death toll from the disaster rose to above 200 people, including dozens killed in neighboring East Timor. 

Warming waters have driven thousands of ocean species poleward from the equator, threatening marine ecosystems and the livelihoods of people who depend on them, researchers reported Monday.

Tropical cyclone Seroja pounded Indonesia and East Timor Monday after torrential rains triggered floods and landslides that have killed at least 91 people and left dozens missing.