It takes about 8500 years for a grain of sand from the Andes to be washed across the Argentine lowlands into the Río Paraná.
articles
In Dry Years, Rivers Become Birds’ Crowded Corridors
In a dry year in the West, when the world turns crispy and cracked, rivers and streams with their green, lush banks become a lifesaving yet limited resource.
2021 Antarctic Ozone Hole 13th-Largest, Will Persist into November
The 2021 Antarctic ozone hole reached its maximum area on Oct. 7 and ranks 13th largest since 1979.
Scientists Bring Efficiency to Expanding Offshore Wind Energy
New Cornell research shows how to make offshore wind farms more efficient in the face of impending rapid expansion – crucial information as the U.S. Department of the Interior affirmed White House plans to lease federal waters for several giant arrays of wind turbines along the waters of the East Coast.
Scientific Questions Arrive in Ports
Satellite observations of nitrogen dioxide near key U.S. ports suggest that increased shipping activity and backlogs may be affecting air quality.
Heatwaves Like ‘the Blob’ Could Decrease Role of Ocean as Carbon Sink
Researchers have found the two-year heatwave known as ‘the Blob’ may have temporarily dampened the Pacific’s ‘biological pump,’ which shuttles carbon from the surface ocean to the deep sea where it can be stored for millennia.


