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Trees crashed onto cars and into streets during storms in Chicago on Aug. 10, 2020. (Patty Wetli / WTTW News)

As Chicago gets ready for cooler weather, many parts of the country are being hit by wildfires, hurricanes and the aftermath of last month’s destructive derecho. We learn more with atmospheric scientist Scott Collis.

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Monday's storm caused widespread damage, including in Chicago’s Lincoln Square, where a Weatherbug station recorded an 85 mph wind gust. (Patty Wetli / WTTW News)

The National Weather Service has confirmed that a tornado touched down in Rogers Park during Monday’s powerful storm. Thousands of Chicagoans remained without power Tuesday morning. 

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Side-by-side comparisons show a decrease in nitrogen dioxide over France. (Credit: European Space Agency)

It’s estimated that roughly two billion people around the globe are now under some form of stay-at-home order. This significant slowdown in economic activity has also led to an environmental impact, particularly in the air.

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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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Cars sit submerged in water from Hurricane Dorian in Freeport, Bahamas on Tuesday, Sept. 3, 2019. (AP Photo / Ramon Espinosa)

Hurricane Dorian pounded away at the Bahamas for a day and a half, devastating thousands of homes, trapping people and crippling hospitals. Atmospheric scientist Scott Collis of Argonne National Laboratory weighs in.

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Lake Michigan water levels are expected to top the record for June, and there’s a chance they could surpass the all-time record set in 1986. We head to the lakefront, and speak with experts.

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Chicago scientists Scott Collis (courtesy Scott Collis), left, and Yarrow Axford (photo by Alex P. Taylor).

Subzero temperatures in Chicago are not unlike Arctic parts of the globe. Local scientists Scott Collis and Yarrow Axford share their experiences working on the edges of the world.