(Phys.org)—Unlike electromagnetic radiation, which consists of massless and accelerated charged particles, galactic cosmic rays (CR) are composed mostly of atomic nuclei and solitary electrons, objects that have mass. Cosmic ...
The Arctic is often cited for a plethora of impacts resulting from anthropogenic climate change, including glacier retreat and reductions in floating sea ice, meltwater incursions changing ocean salinity, as well as sea level ...
Just over 250 million years ago during the end of the Permian period and start of the Triassic, reptiles had one heck of a coming out party.
Evolution
Aug 19, 2022
39
397
A new study has revealed the most intense heatwaves ever across the world—and remarkably some of these went almost unnoticed decades ago.
Earth Sciences
May 4, 2022
2
1004
The global water cycle—that is, the constant movement of freshwater between the clouds, land and the ocean—plays an important role in our daily lives. This delicate system transports water from the ocean to the land, ...
Earth Sciences
Feb 23, 2022
1
327
A University of Arizona-led effort to reconstruct Earth's climate since the last ice age, about 24,000 years ago, highlights the main drivers of climate change and how far out of bounds human activity has pushed the climate ...
Earth Sciences
Nov 10, 2021
51
1087
The rise of dinosaurs coincided with environmental changes driven by major volcanic eruptions over 230 million years ago, a new study reveals.
Earth Sciences
Sep 27, 2021
24
1709
A study published the week of July 5 in the Proceedings of the National Academy of Sciences led by Michael Moore at Washington University in St. Louis finds that dragonfly males have consistently evolved less breeding coloration ...
Ecology
Jul 5, 2021
9
23
Walls and fences designed to secure national borders could make it difficult for almost 700 mammal species to adapt to climate change, according to new research.
Ecology
Feb 8, 2021
4
111
Volcanic activity did not play a direct role in the mass extinction event that killed the dinosaurs, according to an international, Yale-led team of researchers. It was all about the asteroid.
Earth Sciences
Jan 16, 2020
17
2186
