Earth is layered like an onion, with a thin outer crust, a thick viscous mantle, a fluid outer core and a solid inner core. Within the mantle, there are two massive blob-like structures, roughly on opposite sides of the planet. ...
Earth Sciences
Mar 10, 2022
1
316
Around the world, between 40 and 50 volcanoes are currently erupting or in states of unrest, and hundreds of millions of people are at risk of hazards posed by these potentially active volcanos. Yet, despite the profound ...
Earth Sciences
Mar 10, 2022
2
204
The geological events we see on the surface of the Earth as mountains, volcanoes and earthquakes are expressions of processes that are happening deep in our planet. Here on the Earth's crust, we're part of a conveyor belt ...
Earth Sciences
Mar 9, 2022
0
504
The Australian wildfires in 2019 and 2020 were historic for how far and fast they spread, and for how long and powerfully they burned. All told, the devastating "Black Summer" fires blazed across more than 43 million acres ...
Earth Sciences
Feb 28, 2022
0
696
The South Asian monsoon, also known as Indian summer monsoon (ISM), is crucial for the food security and socioeconomic well-being of 40% of the world's population. From a historical perspective, fluctuations in monsoon rainfall ...
Earth Sciences
Feb 28, 2022
0
93
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
Researchers have observed extremely high rates of melting at the bottom of the Greenland Ice Sheet, caused by huge quantities of meltwater falling from the surface to the base. As the meltwater falls, energy is converted ...
Earth Sciences
Feb 21, 2022
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845
Rapid hydroelectric dam expansion in the Amazon poses a serious threat to Earth's largest and most biodiverse river basin. There are 158 dams in the Amazon River basin, with another 351 proposed; these projects are typically ...
Environment
Feb 17, 2022
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21
As ice sheets began melting at the end of the last ice age, a series of cataclysmic floods called the Missoula megafloods scoured the landscape of eastern Washington, carving long, deep channels and towering cliffs through ...
Earth Sciences
Feb 14, 2022
2
1906
A new study looking at the presence of pharmaceuticals in the world's rivers found concentrations at potentially toxic levels in more than a quarter of the locations studied.
Environment
Feb 14, 2022
0
266
