Environment

The African elephant is a threatened species, according to the U.S. Endangered Species Act. Their status led to a ban on sport-hunted elephant trophies in Zimbabwe and Zambia by the Obama administration. Now that protection is in question.

After Hurricane Harvey, some Texas residents, politicians and scientists are wondering whether the whole U.S. system for predicting floods is any good.

The storm's deluge flooded parts of southeast Texas that had rarely, or never, been underwater before. Some areas got more than 50 inches of rain in a few days. "When the numbers started coming in it was a little scary," says Matt Zeve, the director of operations for the Harris County Flood Control District, which includes Houston.

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ARI SHAPIRO, HOST:

How Much Hotter Is It In The Slums?

Nov 20, 2017

When Nairobi gets hot, its slums get even hotter.

That's what a new study published in PLOS ONE has found. In 2015, researchers put dozens of thermometers in poor communities and monitored them during Nairobi's warmest months of December, January and February — during what turned out to be the capital's hottest summer in 30 years.

They found that slums were 5 to 10 degrees Fahrenheit higher than the city's official weather station less than half a mile away.

The Keystone XL pipeline, an $8 billion project that has attracted significant protest from environmental groups, has cleared a major regulatory hurdle on its path to completion. On Monday, the Nebraska Public Service Commission certified the pipeline to run through the state.

If Houston's record deluge during Hurricane Harvey highlighted the dangers of unchecked, sprawling development, then Tulsa — another city built on oil — is a showcase for the opposite.

The Western U.S. is just starting to recover after a prolonged, 16-year drought. A lack of water can force people to take a hard look at how they use it, and make big changes. That's what happened in southern Colorado, where farmers have tried a bold experiment: They're taxing themselves to boost conservation.

Colorado's San Luis Valley is a desperately dry stretch of land, about the same size as New Jersey.

For all the negative headlines that 2017 have generated, Republicans are on the cusp of accomplishing two major policy goals that have eluded them for decades, at the same time.

The Senate could soon approve oil drilling in Alaska's Arctic National Wildlife Refuge with its bill to overhaul the nation's tax code.

The tiny nation of Denmark has just three stations for monitoring atmospheric radiation. Each week, scientists change out air filters in the detectors and take the used ones to a technical university near Copenhagen.

There, Sven Poul Nielsen and other researchers analyze the filters. They often snag small amounts of naturally occurring radioactivity, radon for example.

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