Researchers in the U.S. and Spain have discovered a plethora of previously unknown microbes living in wet clay layers below Chile’s arid Atacama Desert. The finding will help future rovers search for life on Mars.
In the next few decades, scientists expect we’ll see an ice-free Arctic Ocean throughout the summer. That prospect got much closer in 2020, due in part to the exceptional summer heatwave that roiled the Russian Arctic.
The last time CO2 concentrations reached today’s level was 3 million years ago, during the Pliocene Epoch. Hear from geoscientists who see evolving conditions in the Arctic as an indicator of how climate change could transform the planet.
Satellite imagery has revealed that 2 of the fastest-changing glaciers in Antarctica – Pine Island and Thwaites – are fracturing and weakening faster than ever, a step towards the glaciers’ disintegrating and causing sea levels to rise dramatically.