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(Roman Boed / Flickr)

Author Dan Egan had sobering words for Chicagoans at a One Book, One Chicago event this week.

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(Fred Faulkner / Flickr)

A resolution introduced at Wednesday’s City Council meeting calls for an emergency “climate mobilization” on a scale not seen since WWII.

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Firefighters drag their water hose after putting out a spot fire near Moruya, Australia, Saturday, Jan. 4, 2020. Australia’s Prime Minister Scott Morrison called up about 3,000 reservists as the threat of wildfires escalated Saturday in at least three states with two more deaths, and strong winds and high temperatures were forecast to bring flames to populated areas including the suburbs of Sydney. (AP Photo / Rick Rycroft)

Australia’s unprecedented wildfires are supercharged thanks to climate change, the type of trees catching fire and weather, experts say. Here are a few questions and answers about the science behind them.

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Using the Event Horizon Telescope, scientists obtained an image of the black hole at the center of galaxy M87, outlined by emission from hot gas swirling around it under the influence of strong gravity near its event horizon. (Credits: Event Horizon Telescope collaboration et al.)

From the first-ever image of a black hole to growing concern over climate change, we review some of the year’s top science stories with three of our regular science contributors.

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 In this Dec. 19, 2008, file photo, Jeannie Elias, left, Mary Spencer, and Alison Wagner look for birds in Fayston, Vermont, as they take part in The National Audubon Society’s annual Christmas Bird Count. (AP Photo / Toby Talbot, File)

It’s been 120 years since New York ornithologist Frank Chapman launched his Christmas Bird Count as a bold new alternative to what had been a longtime Christmas tradition of hunting birds.

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What will the world look like in 20 years if climate change goes unchecked? That’s the premise of “2040 A.D.,” a new collection of short stories that fall under an emerging literary genre known as climate fiction. 

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In this May 10, 2019 photo, Brett Adams gestures as he stands where the road to his flooded farm disappears under flood waters, with the farm buildings seen in the background, in Peru, Neb. (AP Photo / Nati Harnik)

This year’s devastating losses are forcing tough decisions about the future of farming in America’s flood plains, even among those skeptical of climate change and humans’ role in it.

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(qimono / Pixabay)

The computer models used to simulate what heat-trapping gases will do to global temperatures have been pretty spot-on in their predictions, a new study found.

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(qimono / Pixabay)

Secretary of State Mike Pompeo on Monday touted America’s carbon pollution cuts and called the Paris deal an “unfair economic burden” to the U.S. economy.

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(Pixabay)

A group of 30 states and cities are taking legal action to defend the federal government’s authority to regulate emissions from coal-fired power plants. 

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A piping plover (Lorraine Minns / Audubon Photography Awards)

Hundreds of bird species in North America are at risk of extinction from climate change, according to an alarming new report from the National Audubon Society.

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Activists on Monday evening closed down the streets in front of Chicago City Hall and the James R. Thompson Center as they called on Mayor Lori Lightfoot and Gov. J.B. Pritzker to declare a “climate emergency.”

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Naomi Klein appears on “Chicago Tonight” on Oct. 2, 2019.

Over the past year, a term new to many Americans has entered the political lexicon: the Green New Deal. One early advocate was author Naomi Klein, who joins us to discuss her new book, “On Fire: The (Burning) Case for a Green New Deal.”

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Flooding in Chicago’s Albany Park neighborhood on April 18, 2013. (Center for Neighborhood Technology / Flickr)

Illinois experienced more than 1,500 flood events from 2000 to 2018 – an average of 1.5 floods per week – resulting in $3 billion in property damages, according to a new report from the American Geophysical Union.

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(Free-Photos / Pixabay)

Investors in municipal bonds are increasingly weighing the effects of climate change in their calculations, and a new report out Tuesday from Moody’s Investor Service indicates Illinois bonds are not going to benefit from the new math.

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President Donald Trump speaks during a meeting with Polish President Andrzej Duda at the InterContinental Barclay hotel during the United Nations General Assembly on Monday, Sept. 23, 2019, in New York. (AP Photo / Evan Vucci)

President Donald Trump made his political priorities clear Monday within an hour of arriving at the United Nations for a three-day visit: He breezed by a major climate change summit to focus instead on religious persecution.