Geologic activity on Earth appears to follow a 27.5-million-year cycle, giving the planet a 'pulse,' according to a new study published in the journal Geoscience Frontiers.
Earth Sciences
Jun 18, 2021
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1033
Satellite imagery shows that the area covered by kelp forests off the coast of Northern California has dropped by more than 95 percent, with just a few small, isolated patches of bull kelp remaining. Species-rich kelp forests ...
Ecology
Mar 5, 2021
1
7455
How much climate change is natural? How much is man-made?
Environment
Sep 18, 2019
21
38
The Latest Permian Mass Extinction (LPME) was the largest extinction in Earth's history to date, killing between 80–90% of life on the planet, though finding definitive evidence for what caused the dramatic changes in climate ...
Earth Sciences
Jan 26, 2023
4
257
(Phys.org)—The Permian geologic period that ended the Paleozoic era climaxed around 252 million years ago with a sweeping global mass extinction event in which 90 to 95 percent of marine life became extinct. It would take ...
The massive Kaskawulsh Glacier in northern Canada has retreated about a mile up its valley over the past century.
Environment
Apr 17, 2017
0
252
A team of paleontologists from the University of Washington and its Burke Museum of Natural History and Culture excavated four dinosaurs in northeastern Montana this summer. All fossils will be brought back to the Burke Museum ...
Paleontology & Fossils
Sep 21, 2021
0
6632
The "super-eruption" of a major volcanic system occurs about every 100,000 years and is considered one of the most catastrophic natural events on Earth, yet scientists have long been unsure about what triggers these violent ...
Earth Sciences
Oct 12, 2011
20
3
Dinosaurs were dying out much earlier than the mass extinction event 65 million years ago, Natural History Museum scientists report in the Proceedings of the Royal Society journal today.
Archaeology
Apr 30, 2009
5
1
Evidence that catastrophic geological events could have created evolutionary bottlenecks that changed the course of life on Earth may be buried within ancient rocks beneath our feet.
Astronomy
Oct 16, 2018
0
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