Potential "Ophelia" tropical storm spurs warnings from Carolinas to Delaware

Potential "Ophelia" tropical storm spurs warnings from Carolinas to Delaware

What could soon be Tropical Storm Ophelia is moving closer to the U.S. East Coast, the National Hurricane Center said, and a tropical storm warning is in effect from Cape Fear, North Carolina, to Fenwick Island, Delaware. CBS News Baltimore’s Janay Reece has an update on how locals there are preparing for the storm. And Lynette Charles, meteorologist for The Weather Channel, has a forecast for where the storms could be most severe.

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Wildfire smoke has undone roughly 25% of U.S. air quality improvements since 2000, study finds

Wildfire smoke has undone roughly 25% of U.S. air quality improvements since 2000, study finds

Since 2016, wildfire smoke in the U.S. has reversed roughly 25% of air quality improvements made from the 2000 Clean Air Act, according to a new study published in the journal Nature. That figure doubles to roughly 50% when looking specifically at the impact on many western states. For more on this, CBS News was joined by Marshall Burke, an associate professor at Stanford’s Doerr School of Sustainability and a co-author of the study.

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Medicanes: Why hurricane-type storms in the Mediterranean are on the rise

Medicanes: Why hurricane-type storms in the Mediterranean are on the rise

Scientists describe medicanes as a weather phenomenon similar to a hurricane or typhoon that forms over the Mediterranean Sea. Experts warn that because of global warming, medicanes may be intensifying. Kristen Corobosiero, associate professor of atmospheric and environmental science at the University of Albany, joined CBS News to talk about these storms.

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State of emergency declared for Maine, Massachusetts ahead of Hurricane Lee's arrival

State of emergency declared for Maine, Massachusetts ahead of Hurricane Lee's arrival

Hurricane Lee, a Category 1 storm Friday, is approaching the northeast coast and is expected to impact New England and Atlantic Canada by Saturday. President Biden has declared a state of emergency for Maine, while Gov. Maura Healey declared an emergency for Massachusetts. Chris Warren with The Weather Channel has the latest forecast.

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