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Lauren Sommer

By almost every measure, the drought in the Western U.S. is already one for the record books.

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Coral reef biologists are often asked the same question again and again: "When my kids grow up, will there still be coral reefs?"

"That's a question I ask myself," says Christopher Cornwall, a research fellow at Victoria University of Wellington in New Zealand. "The greatest fear is that all the coral will be gone at a certain point in time."

Updated May 25, 2021 at 2:56 PM ET

The Biden administration plans to open the California coast to offshore wind development, ending a long-running stalemate with the Department of Defense that has been the biggest barrier to building wind power along the Pacific Coast.

In a hotter climate, dirt is a hot commodity.

With sea levels expected to rise three to six feet by the end of the century, coastal communities are moving fast to construct major shoreline projects to protect themselves. As the size of these projects expands, the primary building materials--dirt and mud --are getting scarce.

Updated April 22, 2021 at 10:27 AM ET

President Biden announced on Thursday a number that could shape the rest of his presidency: a goal to cut U.S. greenhouse gas emissions between 50 to 52 percent by 2030. The announcement marks the country's renewed commitment to the Paris accord, the international climate change agreement that former President Trump withdrew from.

They're purple, spiky and voracious, and just off the West Coast, there are more of them than you can count.

Purple sea urchins have exploded in recent years off California, covering the ocean floor in what divers describe as a "purple carpet." And they devour kelp: the once-lush forests of seaweed that hugged the coastline are disappearing. Since 2014, 95 percent of the kelp have vanished across a large part of Northern California, most of it bull kelp.

A few years ago, marine biologist Kyle Van Houtan spotted an online video that he couldn't quite believe. It showed a young great white shark, about five-feet long, swimming just off a pier in Central California.

"Our initial reaction was that it can't be true," Van Houtan says. "We know that they're in Southern California and Mexico, not in Monterey."

When they're young, white sharks typically live in the warm waters of Southern California, hundreds of miles from the cold, rough surf up north off Monterey.

As the blackouts in Texas dragged on, millions of residents quickly realized they had more to worry about than trying to light and heat their homes. The water coming out their faucets was no longer safe to drink.

Like falling dominos, infrastructure around Texas, dependent on electricity, began failing in the extreme cold. In Austin, the Ullrich Water Treatment Plant shut down due to an electrical failure. That, combined with low water pressure from broken pipes, meant residents had to boil their water.

Off the coast of England, there's a tiny, wind-swept island with the remains of a lifeboat rescue station from the mid-1800s. The workers who once ran the station on Hilbre Island did something that, unbeknownst to them, has become crucial for understanding the future of a hotter climate: They recorded the tides.

In a flurry of first-week executive orders, President Biden sent a definitive message that his administration would move faster on climate change than any before. Now, the question is whether it will be fast enough.

President Biden is moving quickly on climate change on his first day in office, saying he plans to sign a sweeping executive order to undo many of the Trump administration's environmental rollbacks.

As commuters stayed home in 2020 and airplanes remained on the ground, the nationwide slowdown led to a sizable drop in heat-trapping emissions. U.S. greenhouse gas emissions fell by 10 percent, the largest annual drop since World War II, according to a report by the Rhodium Group.

Still, the climate diet isn't likely to stick. The reductions were largely due to temporary changes during lockdown orders. By the end of the year, Americans were already back to driving and flying more.

With just a few weeks left, 2020 is in a dead-heat tie for the hottest year on record. But whether it claims the top spot misses the point, climate scientists say. There is no shortage of disquieting statistics about what is happening to the Earth.

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The pandemic is having some unintended consequences on the environment. There's less air pollution. And now scientists are finding that water quality is improving, too. NPR's Lauren Sommer reports.

After record-breaking wildfires this year, thousands of people across the West are still clearing piles of charred debris where their homes once stood in the hope of rebuilding their lives.

With climate change fueling bigger, more destructive wildfires, rebuilding offers an opportunity to create more fire-resistant communities by using building materials that can help homes survive the next blaze.

Jennifer Montano watches her two kids' faces as they quietly clamber out of the car in their driveway in Vacaville, Calif. It's been a week since the children were last home, but where their house once stood, there's ash and rubble now.

In August, the Montanos' house was destroyed by the LNU Lightning Complex Fire, one of more than 10,000 structures lost in record-breaking blazes across the West this year.

Each family had their reasons for ending up in harm's way.

For the Harts, it was the chance to have a large backyard in a quiet part of Ashland, Ore. The porch of the Baltimore house was perfect for Scott Harris' barbecue equipment. Kevin Boudreaux had grown up on the bayou and wanted to settle near his childhood home in Cameron, La.

California will phase out the sale of all gasoline-powered vehicles by 2035 in a bid to lead the U.S. in reducing greenhouse gas emissions by encouraging the state's drivers to switch to electric cars.

Gov. Gavin Newsom signed an executive order Wednesday that amounts to the most aggressive clean-car policy in the United States. Although it bans the sale of new gas cars and trucks after the 15-year deadline, it will still allow such vehicles to be owned and sold on the used-car market.

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It's become a near-annual occurrence. A massive wildfire forces thousands of people to flee their homes. Exhausted firefighters warn of its speed and intensity. Smoke smothers cities and states hundreds of miles away.

The upshot of climate change is that everyone alive is destined to experience unprecedented disasters. The most powerful hurricanes, the most intense wildfires, the most prolonged heat waves and the most frequent outbreaks of new diseases are all in our future. Records will be broken, again and again.

But the predicted destruction is still shocking when it unfolds at the same time.

Updated Friday, 4:30 p.m. ET

Millions of people rely on real estate websites when they're hoping to buy or rent a home. Major sites such as Zillow, Redfin, Trulia and Realtor.com feature kitchens, bathrooms, mortgage estimates and even school ratings. But those sites don't show buyers whether the house is likely to flood while they're living there.

On a cool February morning, around 60 people gathered in the Sierra Nevada foothills to take part in a ceremony that, for many decades, was banned.

At 3 a.m. on Friday morning, biologist Kelly Sorenson was awake, nervously watching the live webcam feed of a California condor nest on the Big Sur coast. He could see a 5-month-old chick, still unable to fly, as the flames of the Dolan Fire came into view.

"It was just terrifying," Sorenson said. "Having the live-streaming webcams was both a blessing and a nightmare because we had to watch the fire as it burned through the canyon."

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Here in California, we've had almost a week of rolling blackouts. And NPR's Lauren Sommer has been asking how to keep this from becoming normal.

They're wiggly and slimy and live inside the flesh of other animals. Now, scientists are making a new case for why they should be saved.

Parasites play crucial roles in ecosystems around the world, making up around 40% of animal species. As wildlife faces the growing threats of climate change and habitat loss, scientists warn that parasites are equally vulnerable.

That's why a team of scientists has released a "global parasite conservation plan."

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President Trump is attacking Democrats on a new front: suburbia.

"They want to eliminate single-family zoning, bringing who knows into your suburbs," Trump said on a July campaign call.

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President Trump is attacking Democrats in an area where he's trying to win votes - the suburbs.

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