Malcolm Turnbull promises to contribute $1 billion over the next five years to fight climate change and to ratify the second commitment period of the Kyoto protocol.

Global temperatures are continuing to climb to fresh records, adding to the urgency of curbing greenhouse gas emissions that are the primary cause, the World Meteorological Organisation says.

A new $500 million government authority would deliver a 15-year pipeline of clean energy projects through a combination of reverse auctions and direct investment under a Greens plan to boost renewa

Sydney will most likely endure scorching temperatures into the 40s on Friday as powerful westerlies blowing from Australia's red hot centre block cooling sea breezes.

Washington: The US National Institutes of Health quietly ended the federal government's long and controversial history of using chimpanzees for biomedical research.

A strong undersea earthquake has struck off the coast near the Solomon Islands, according to the Bureau of Meteorology.

Britain aims to close its coal-fired power plants by 2025 under plans announced on Wednesday, becoming the first major economy to put a date on shutting coal plants to curb carbon emissions.

The powerful "Great Godzilla" El Nino in the Pacific may last as much as two months longer than expected because of another unusual climate phenomenon scientists have nick-named "The Blob".

Key organisms in the Southern Ocean food chain face an abrupt onset of acidification as soon as 2030, new research from the US finds.

A "loss of resilience" among Australia's native animals has ecologists on alert ahead of what is forecast to be a long, hot summer.