Antarctica is at risk of abrupt and potentially irreversible changes to the continent's ice, ocean and ecosystems that could have profound implications for Australia and beyond, unless urgent action ...

The Arctic is warming almost four times faster than the rest of the planet. High temperatures are already causing the permanently frozen ground, known as permafrost, to thaw. The carbon contained in ...

Earth’s climate is no longer edging toward danger in the abstract. Scientists now say at least one major part of the system has already tipped into a new state, with others close behind. The question ...

Humanity has reached the first Earth system tipping point, the widespread death of warm-water coral reefs, marking the beginning of irreversible planetary shifts. As global temperatures move beyond ...

The climate has warmed so much that we are already at risk of triggering five global “tipping points” that would have catastrophic effects worldwide and couldn’t be reversed easily if at all, ...

Climate change has already locked in long term shifts to sea levels, temperatures, and ecosystems, making many of its impacts irreversible for centuries to come. We can still limit how severe these ...

Researchers warn Antarctica is undergoing abrupt changes that could trigger global consequences. Melting ice, collapsing ice shelves, and disrupted ocean circulation threaten sea levels, ecosystems, ...

Pine Island glacier is one of the fastest flowing outlets of ice from the west Antarctic ice sheet, draining an area three-quarters the size of the UK. In recent decades, the glacier has been ...

The effects of climate change will grow more severe as greenhouse gas emissions rise, according to a draft United Nations report. The Intergovernmental Panel on Climate Change warned the “risk of ...

A woman tries to shade herself and her children with an umbrella as they walk Spanish Steps in Rome on Saturday. (Massimo Percossi/EPA-EFE/Shutterstock) As global ...