In 80% of African countries, human settlements move toward rivers and into cities during drought, increasing the number of people living in flood-risk areas in recent decades, according to a recent study. This resettlement ...
Environment
Dec 21, 2023
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42
One of the hottest debates in archaeology is how and when humans first arrived in North America. Archaeologists have traditionally argued that people walked through an ice-free corridor that briefly opened between ice sheets ...
Archaeology
Dec 16, 2023
1
1232
Scientists often field check their findings, heading outside to see if computer models match with what is happening in the real world. But doing so is challenging when the field is two and a half miles up. Enter a new field ...
Environment
Dec 13, 2023
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49
Frequent droughts—interspersed with floods—have become the new norm in eastern East Africa over the past few years, driving a massive food security crisis. In 2020, the Horn of Africa entered its longest and most severe ...
Earth Sciences
Dec 7, 2023
0
44
Activity from the sun, such as solar flares, can cause fluctuations in Earth's geomagnetic field that send electrical currents flowing through power grids. These geomagnetically induced currents (GICs) can cause problems ...
Earth Sciences
Dec 5, 2023
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1
Preparations for a safe landing on Earth, such as finding the most even terrain and equipping the appropriate landing gear, are also crucial for Mars missions.
Planetary Sciences
Dec 4, 2023
0
108
There are thousands of mountains scattered across the seafloor, many of which are thousands of meters tall. These seamounts may have significant impacts on seismicity when the portion of the ocean floor they are on is subducted ...
Earth Sciences
Nov 30, 2023
0
10
The Cascade Volcanic Arc stretches from Northern California to southern British Columbia and contains more than a dozen volcanoes. The U.S. Geological Survey classifies 11 of them, including Mount Baker and Mount Hood, as ...
Earth Sciences
Nov 29, 2023
1
69
In the 1800s, some of the strongest earthquakes in recorded U.S. history struck North America's continental interior. Almost two centuries later, the central and eastern United States may still be experiencing aftershocks ...
Earth Sciences
Nov 14, 2023
0
118
Mountains create their own weather or climate systems by changing airflow and precipitation patterns. Orographic, or mountain-influenced, precipitation occurs as moisture-laden air rises over the high topography; the air ...
Earth Sciences
Nov 8, 2023
0
61
