It was likely the largest single-day climate protest in history, with an estimated 4 million people in 185 countries participating.

Students skipped school, made signs, and took to the streets in more than 3,600 planned strikes around the globe, part of a huge youth-led movement to protest inaction on climate change.

Millions of people from Sydney to Manila, Dhaka to London and New York are marching for urgent action on climate breakdown.

The world climate is in crisis, and it is all our own doing. And we must through concerted global action end our reliance on fossil fuels before time runs out.

The world must invest $1.8 trillion by 2030 to prepare for the effects of global warming. A new report said the payoff could be four times that.

Jonathan Franzen writes about the tendency of media and politicians to describe the climate crisis with an excess of hope, and about the different decisions that become available after realizing that the climate catastrophe is unavoidable.

We face interconnected planetary emergencies threatening our climate and ecosystems. Charlie J. Gardner and Claire F. R. Wordley argue that scientists should join civil disobedience movements to fight these unprecedented crises.

We have warned you about the destruction of our lands. You must listen before it is too late, says Raoni Metuktire, chief of the indigenous Brazilian Kayapó people.

Fires in the Amazon have risen 83% amid growing deforestation, Brazil's space research agency says.