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Rebecca Hersher

Rebecca Hersher is a reporter on NPR's Science Desk, where she reports on outbreaks, natural disasters, and environmental and health research. Since coming to NPR in 2011, she has covered the Ebola outbreak in West Africa, embedded with the Afghan army after the American combat mission ended, and reported on floods and hurricanes in the U.S. She's also reported on research about puppies. Before her work on the Science Desk, she was a producer for NPR's Weekend All Things Considered in Los Angeles.

Hersher was part of the NPR team that won a Peabody award for coverage of the Ebola epidemic in West Africa, and produced a story from Liberia that won an Edward R. Murrow award for use of sound. She was a finalist for the 2017 Daniel Schorr prize; a 2017 Pulitzer Center on Crisis Reporting fellow, reporting on sanitation in Haiti; and a 2015 NPR Above the Fray fellow, investigating the causes of the suicide epidemic in Greenland.

Prior to working at NPR, Hersher reported on biomedical research and pharmaceutical news for Nature Medicine.

As the world's climate changes, ocean warming is accelerating and sea levels are rising more quickly, warns a new report by the U.N. Intergovernmental Panel on Climate Change.

The report is a synthesis of the most up-to-date climate science on oceans and ice, and it lays out a stark reality: Ocean surface temperatures have been warming steadily since 1970, and for the past 25 years or so, they've been warming twice as fast.

The firefighters came on Monday. They went up and down the halls, knocking on every apartment in the six-story Ansonborough House building in downtown Charleston, S.C., and leaving notices on the doors of those who didn't answer: This area is under mandatory evacuation.

The manager of the building heeded the warning and left a note on the window in the lobby explaining that the building would not be staffed all week.

It technically began last fall when Hurricane Florence swelled the Ohio River, but really it was all the unnamed storms that came after it — one after another after another, bringing rain on rain on rain across the central U.S. until the Mississippi River hit flood stage this winter.

Much of the Mississippi, and the massive tributaries that feed it, stayed flooded until June. That meant more than 140 days of cascading disasters for hundreds of small towns from Minnesota to Louisiana and catastrophic damage to ranch and farm communities that dot the Mississippi's swollen branches.

People across southern Louisiana are spending the weekend worried about flooding. The water is coming from every direction: the Mississippi River is swollen with rain that fell weeks ago farther north, and a storm called Barry is pushing ocean water onshore while it drops more rain from above.

It's a situation driven by climate change, and one that Louisiana has never dealt with, at least in recorded history. And it's raising questions about whether New Orleans and other communities are prepared for such an onslaught.

Bayshore Boulevard in South Tampa routinely floods during thunderstorms.
WUSF Public Media

By Rebecca Hersher / NPR

Sea levels are rising, and that is sending more ocean water into streets, sewers and homes. For people who live and work in coastal communities, that means more otherwise-sunny days disrupted by flooding.

Federal weather forecasters are predicting a "near normal" number of storms this hurricane season, which runs from June 1 through November 1.

Between nine and 15 named storms, including includes tropical storms, are predicted to form in the Atlantic this year, said Neil Jacobs, acting administrator of the National Oceanic and Atmospheric Administration.

Hurricane Maria was the rainiest storm known to have hit Puerto Rico, and climate change is partly to blame, according to a new study.

The worst rain fell in the mountainous central part of Puerto Rico, from the northwest to the southeast. That part of the island is rainy under normal conditions. In an average year, it gets more than 150 inches of rain.

When Maria hit in 2017, it dropped nearly a quarter of that annual rainfall in just one day.

Nearly 200 countries have agreed on a set of rules to reduce global greenhouse gas emissions, a crucial step in implementing the landmark 2015 Paris climate agreement.

The rules describe in detail how countries will track their emissions and communicate with each other about their progress in the coming years and decades. But it stops short of committing them to the more ambitious emissions reductions necessary to slow climate change.

Leaders from nearly 200 countries, including the United States, are at a big climate conference in Poland this week. They are struggling to agree on rules for how to meet their national promises to reduce greenhouse gas emissions under the Paris climate agreement of 2015. The official U.S. position is making it difficult.

Updated at 6:01 p.m. ET

Scott Pruitt will no longer lead the Environmental Protection Agency, President Trump announced Thursday afternoon via Twitter.

"I have accepted the resignation of Scott Pruitt," Trump tweeted. "Within the Agency Scott has done an outstanding job, and I will always be thankful to him for this," Trump also wrote.

Michael Botticelli served as President Obama's director of National Drug Control Policy, and pushed Congress to pass a funding measure last year making more money available for the treatment of opioid addiction.

Now he's concerned that the proposed Republican health plan will reduce access to health services for people with addiction.

Updated at 8:00 p.m. ET Saturday

The U.S. Attorney has charged Esteban Santiago, the man in custody for carrying out the deadly shooting at Fort Lauderdale-Hollywood International Airport in Florida on Friday afternoon.

At least five people were killed and six others were injured in the shooting, according to the Broward County Sheriff's Office.

Associated Press

Miami Marlins pitcher José Fernández, who played for Tampa's Alonso High School, was killed early Sunday in a boat crash off Miami Beach, according to authorities. 

"The Miami Marlins organization is devastated by the tragic loss of José Fernández," said the team in a statement circulated via social media. "Our thoughts and prayers are with his family at a very difficult time."

President Obama and former President George W. Bush spoke at an interfaith memorial service Tuesday afternoon for the five police officers murdered in Dallas last week.

Bush, a resident of Dallas, noted that he interacts with law enforcement every day.

"We're proud of the men we mourn," he said.