The Amazon rainforest is emitting more carbon dioxide than it absorbs, according to a new pollution report—the opposite of what is supposed to happen.
Environment
Mar 23, 2022
0
25
Oxygen is critical for life, but what promoted the first rise in atmospheric oxygen on Earth and precisely when it happened have been challenging scientists for the last 70 years.
Earth Sciences
Feb 28, 2022
4
1281
New research led by the University of Massachusetts Amherst definitively resolves a long-standing discrepancy in the geologic record that pitted studies of marine ice-sheet behavior against those that reconstructed past conditions ...
Earth Sciences
Feb 14, 2022
3
156
Nasty winter tornadoes—like the deadly ones last week that hit five states—are likely to be stronger and stay on the ground longer with a wider swath of destruction in a warming world, a new study shows.
Earth Sciences
Dec 14, 2021
0
1215
Scientists at the University of Southampton have discovered that two intense periods of volcanism triggered a period of global cooling and falling oxygen levels in the oceans, which caused one of the most severe mass extinctions ...
Earth Sciences
Dec 2, 2021
1
232
Not long after the dawn of complex animal life, tens of millions of years before the first of the "Big Five" mass extinctions, a rash of die-offs struck the world's oceans. Then, for reasons that scientists have debated for ...
Ecology
Oct 5, 2021
1
1394
New Zealand may be relatively small, but its fossil record reveals a globally important ecological relationship between the number of species, their role in the ecosystem and ocean temperatures.
Earth Sciences
Aug 27, 2021
2
179
Richard Barclay opens a metal drawer in archives of the Smithsonian Natural History Museum containing fossils that are nearly 100 million years old. Despite their age, these rocks aren't fragile. The geologist and botanist ...
Paleontology & Fossils
Aug 24, 2021
1
596
After three years of writing and two weeks of virtual negotiations to approve the final wording, the Sixth Assessment Report (AR6) of the Intergovernmental Panel on Climate Change (IPCC) confirms that changes are happening ...
Environment
Aug 9, 2021
0
62
The Mesozoic, which stretched from about 252 million to 66 million years ago, was a pivotal period in Earth's history. In addition to being the age of the dinosaurs, it was when the supercontinent Pangaea began to separate ...
Earth Sciences
Aug 2, 2021
1
594
