News
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EnvironmentWhat we know and don’t know about wildfire smoke’s health risks
As wildfires become more frequent and severe in California, Oregon and throughout the West Coast, concerns rise about harmful air pollution.
By Aimee Cunningham and Maria Temming -
AnthropologySeven footprints may be the oldest evidence of humans on the Arabian Peninsula
In what’s now desert, people and other animals stopped to drink at a lake more than 100,000 years ago, a new study suggests.
By Bruce Bower -
OceansUnderwater earthquakes’ sound waves reveal changes in ocean warming
A new technique uses the echoes of earthquakes in seawater to track the impact of climate change on the oceans.