Green

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ARI SHAPIRO, HOST:

There was a time when life on Earth almost blinked out. The "Great Dying," the biggest extinction the planet has ever seen, happened some 250 million years ago and was largely caused by greenhouse gases in the atmosphere. Now scientists are beginning to see alarming similarities between the Great Dying and what's currently happening to our atmosphere.

Scientists are highlighting that similarity in a new exhibit at the Smithsonian National Museum of Natural History in Washington, D.C.

The cruise line giant Carnival Corporation and its Princess subsidiary have agreed to pay a criminal penalty of $20 million for environmental violations such as dumping plastic waste into the ocean. Princess Cruise Lines has already paid $40 million over other deliberate acts of pollution.

U.S. District Judge Patricia Seitz approved the terms of the deal during a hearing Monday in Miami. She had appeared to grow increasingly frustrated as the company continued to flout environmental laws during the course of the years-long case.

In an unusual event, a legal settlement in a high-profile fracking case has been made public because of a computer error. The document, dated Aug. 31, 2018, shows that the gas drilling company Range Resources and other defendants agreed to pay $3 million to three Washington County, Pa., families who alleged that nearby fracking contaminated their properties and made them sick.

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RACHEL MARTIN, HOST:

Off the western coast of Norway are sea caves graced by stick figures painted more than 2,000 years ago. Colored red from the iron-oxide pigment used by Bronze Age artists, the figures appear to be in motion, with arms and legs splayed.

In Alabama's Blount County, off the highway, down a dirt road and up a hill is writer T.K. Thorne's house. She points to her roof and a shining row of black solar panels.

It's a 4-kilowatt system — pretty typical for residential solar — and Thorne got it almost four years ago hoping to help the environment and reduce her electricity bill.

It was a big investment — $8,400 even after a federal tax break. Thorne estimated how long it would take to pay off the solar system, installed the panels, and began waiting for the savings to begin.

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LULU GARCIA-NAVARRO, HOST:

Anyone who was in Panama City, Fla., last year when Hurricane Michael hit has a story to tell. Christina Harding rode out the storm with her mother, daughter and two nephews. "It was crazy," she says. "We had to tie the door shut because Michael was trying to come into the house with us, which was not what we wanted. It was like bam, bam, bam, bam. Like somebody trying to get in, you know?"

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AUDIE CORNISH, HOST:

Shipping containers of Canadian trash have moldered in the Philippines for years, in a situation so irksome to Philippine President Rodrigo Duterte that he threatened to personally sail it back to Canadian waters.

Now, much of the trash that arrived in 2013 and 2014 is on its way back to Canada. The Canadian government says that 69 shipping containers of rubbish have left the Philippines and are expected to reach Canada by the end of June.

Updated at 9:35 p.m. ET

The Arkansas River just keeps rising. The usually placid tributary of the Mississippi has become a bloated torrent carrying entire trees downstream, drowning riverfront property and halting commerce for hundreds of miles.

Washington Gov. Jay Inslee has not been shy about framing his candidacy to become the 2020 Democratic nominee for president around global climate change.

In his policy proposal he says that defeating climate change is the "defining challenge of our time," and that it is incumbent upon the next president of the United States to make that challenge a priority.

Deadly tornadoes have been ripping through parts of the Unites States for weeks. Storms have been leaving a trail of destruction from Texas all the way up to Maryland, and on Monday, 52 tornadoes may have touched down across eight states, says the National Oceanic and Atmospheric Administration.

Patrick Marsh, a meteorologist at the NOAA's Storm Prediction Center, says it's unusual to have this kind of sustained tornado activity.

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