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In this April 24, 2015, file photo, pumpjacks work in a field near Lovington, N.M. Oil industry and environmental groups say they expect the Environmental Protection Agency to release a proposed rule over the next few days that will roll back requirements on detecting and plugging methane leaks at oil and gas facilities. (AP Photo/Charlie Riedel, File)

The step by the Trump administration would be the latest in a series unwinding the Obama administration’s efforts to cut climate-changing emissions from the oil, gas and coal industries. 

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President Donald Trump watches with Vice President Mike Pence and Defense Secretary Mark Esper as the flag for U.S. Space Command is unfurled in the Rose Garden of the White House in Washington, D.C., on Thursday, Aug. 29, 2019. (AP Photo / Carolyn Kaster)

As society becomes increasingly dependent on space-based systems, there’s a growing need for protection from potential adversaries. But is the U.S. Space Command – and eventually a Space Force – the answer?

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Research by the Humane Society of the United States has found that many puppy mills cited by state agencies went on to receive entirely clean inspection reports from the USDA. (Courtesy Humane Society of the United States)

Legislation proposed by U.S. Rep. Raja Krishnamoorthi seeks to reverse a trend of declining enforcement of animal welfare laws under the Trump administration. 

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A black-crowned night heron snags a fish on River Park’s new riverbed habitat, where Chicago’s last waterfall once flowed. (Evan Garcia / WTTW News)

On Chicago’s Northwest Side, a gently sloping riverbed occupies the former site of a small but historically important dam. We visit a popular fishing spot – for humans and birds alike – at River Park.

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“Choral” combines visuals depicting reefs with a musical score designed to spark curiosity about the underwater coral ecosystem. (Courtesy Northwestern University)

A new installation combining art, architecture and technology provides an immersive look at the underwater world of reefs.

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This March 29, 2018, file photo shows the Facebook moniker on screens at the Nasdaq MarketSite, in New York's Times Square. (AP Photo / Richard Drew, File)

The changes include a tightened verification process that will require anyone wanting to run ads pertaining to elections, politics or big social issues like guns and immigration to confirm their identity and prove they are in the U.S. 

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(Alex Silets / WTTW News)

People commonly adopt dog and cats from the pound, but there’s a new phenomenon in Chicago: stray chickens and roosters are being rounded up in an effort to find them their forever homes.

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General Iron’s scrap metal yard at 1909 N. Clifton Ave. in Lincoln Park. (Alex Ruppenthal / WTTW News)

New rules for a scrap metal yard on the city’s North Side require the facility to reduce emissions of potentially cancer-causing compounds after it violated federal air pollution standards last summer.

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This Aug. 15, 2019 satellite image from Maxar Technologies shows a close-up view of a fire southwest of Porto Velho Brazil. Brazil's National Institute for Space Research, a federal agency monitoring deforestation and wildfires, said the country has seen a record number of wildfires this year as of Tuesday, Aug. 20. (Satellite image ©2019 Maxar Technologies via AP)

News of a spike in wildfires in the Amazon led to an international outcry aimed at Brazilian President Jair Bolsonaro, who responded over the weekend by authorizing the deployment of 44,000 military troops to put out the fires. 

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The Advanced Photon Source at Argonne National Laboratory (Courtesy Argonne National Laboratory)

Since 1995, researchers in Chicago and from around the world have used Argonne National Laboratory’s Advanced Photon Source to create super bright X-rays to probe everything from dinosaur bones to atomic particles. But the APS has an even brighter future.

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(Courtesy Shedd Aquarium)

Ty, an 18-year-old California sea lion, had been living at the aquarium since 2005. Animal caretakers and veterinarians began monitoring him last week after noticing an uncharacteristic decline in his appetite.

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This snowy owl was bred in captivity in Canada and brought to the Illinois Raptor Center as a permanent resident. Unlike most owls, which are nocturnal, the snowy owl is active during the day. (Evan Garcia / WTTW News)

About 180 miles southwest of Chicago, a wildlife conservation facility cares for hundreds of injured, sick or orphaned raptors. We go for a look and meet some of these incredible birds of prey.

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In this July 30, 2019, file photo, the social media application, Facebook is displayed on Apple’s App Store. (AP Photo / Amr Alfiky)

The company did not give a timeline for when it might expand it to the U.S. and other countries, only that it will be in “coming months.”

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(a4gpa / Flickr)

Using satellite images and data on wildlife activity, scientists determined that artificial light levels found in more than a third of the city are altering the circadian rhythm and behaviors of animals throughout the city.

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 In this Thursday, Aug. 15, 2019 photo, a dead catfish floats along the bank of the Burns Ditch near the Portage Marina in Portage, Indiana. Some beaches along northwestern Indiana’s Lake Michigan shoreline are closed after authorities say a chemical spill in a tributary caused a fish kill. (John Luke / The Times via AP)

A steel company apologized for a spill of cyanide and ammonia that led to a fish kill and prompted the closure of beaches along Lake Michigan, saying it “accepts responsibility for the incident.”

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Two southern sea otter pups arrived at Shedd Aquarium in July after being rescued in California. (Brenna Hernandez / Shedd Aquarium)

No makeup was necessary for a pair of fuzzy sea otter pups the aquarium showed off to the media this week. “They get cuter every day,” said Tracy Deakins, a senior trainer of otters and penguins.

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