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Martin Rees appears on “Chicago Tonight.”

A renowned astrophysicist explores the challenges facing Earth – and the prospect of life beyond it – in his new book “On the Future.”

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(Jeremy Atherton / Wikimedia Commons)

Local public health experts are set to testify at a Chicago hearing next week on the Trump administration’s proposal to repeal the Clean Power Plan, which established limits on pollution from power plants. 

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A new art installation at Navy Pier uses a solar-powered highway message board to warn of the dangers of climate change. (Alex Ruppenthal / Chicago Tonight)

Pull over to the side of the road and consider the world-ending event taking place before your eyes. That’s essentially the message conveyed by the newest piece of public art on display at Navy Pier.

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(Aurimas / Flickr)

Chicago has become the seventh city in the world to receive top-level certification for its sustainability efforts focused on green buildings.

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Residents of Dune Acres, Indiana, hike Cowles Bog Trail. (Katherine Moore Powell / The Field Museum)

About 2 million people visit the Indiana Dunes each year for its hills of sand and sprawling beaches. But the beloved site on the southern shore of Lake Michigan is changing – and not in a good way.

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The Northwest Passage Project research vessel the Akademik loffe.

Six students from the University of Illinois at Chicago are starting the fall semester a little early – and a couple thousand miles from campus.

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Northwestern's Paul CaraDonna studied the impact of increased temperatures on mason bees. (Jack Dykinga / Northwestern University)

Slight increases in temperature could lead to the extinction of bees in southwestern states in the near future, according to a new study from Northwestern University and the Chicago Botanic Garden.

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Daniel Schrag (Credit: Stu Rosner / Harvard Magazine)

“While climate change may not yet have had its huge impact on biodiversity, just wait,” says Harvard professor Daniel Schrag. “What’s coming is really extraordinary.”

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More than 11,000 people worldwide studied digital images of the liverwort plant as part of a Field Museum-led study that linked research professionals with citizen scientists. (Courtesy Field Museum)

From kindergartners to college professors, citizen scientists helped Field Museum researchers examine more than 100,000 plant samples that could hold clues to key scientific questions. 

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(Jeremy Atherton / Wikimedia Commons)

A new investment strategy calls for Chicago to redirect funds toward companies that prioritize environmental responsibility and social causes, but local climate activists say the plan falls short.

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(Jeremy Atherton / Wikimedia Commons)

Mayor Rahm Emanuel joined 230-plus mayors Tuesday in formally opposing the Trump administration’s proposed repeal of the Clean Power Plan, which aims to reduce carbon emissions that contribute to climate change.

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(Aurimas / Flickr)

A new city report on energy use by buildings shows progress toward reducing carbon emissions that contribute to global warming.

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Cape Town, South Africa, could soon be the first major city to run out of water. What lessons can Chicago share – and learn?

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For first time since the height of the Cold War, the hands of the Doomsday Clock, a symbolic indicator of how close we are to a global catastrophe, have been moved to 11:58 p.m. This is the closest the clock has been to midnight since 1953.

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(Alvaro del Campo / The Field Museum)

A team led by Field Museum conservation ecologist Corine Vriesendorp has worked for 15 years to protect one of the most biodiverse places on Earth. This week, it was designated as a national park.

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Gov. Bruce Rauner has thus far ignored calls to commit Illinois to meeting goals set in the Paris climate agreement, which aims to slow global warming through reductions in greenhouse gas emissions.