Breathe easy, for now. Scientists say our breathable air won't last forever. A new NASA-supported study warns that Earth's oxygen supply is not a permanent feature of our planet. Though we often take ...

Today’s climate change pales in comparison with what happened as Earth gave birth to its oxygen-containing atmosphere billions of years ago. By analyzing clues contained in rocks, scientists at the ...

Methods to enhance the ocean's uptake of carbon dioxide (CO₂) are being explored to help tackle the climate crisis. However, some of these approaches could significantly exacerbate ocean deoxygenation ...

It is possibly the toughest question in climate science: how much warming does carbon dioxide cause? A new analysis of 66 million years of Earth’s climate history suggests the planet is much more ...