Sensors provide a real-time glimpse at Chicago River quality

Quality of the 156-mile river system has improved in recent years, helped by multibillion-dollar construction of new reservoirs and underground tunnels.

New tool gauges water quality of the Chicago River in real time
video

Alaina Harkness, executive director of Current, talks about their exciting new tool for monitoring the water quality of the Chicago River.

Harrowing report finds 1 in 3 tree species are under the threat of extinction
video

Murphy Westwood, vice president of Science and Conservation at The Morton Arboretum, talks about the importance of saving tree species that are in danger of extinction.

Lake Huron sinkhole may hold secrets to how Earth got its oxygen

Scientists have discovered a previously unconsidered link between the length of daytime and the oxygen levels on Earth. Their theory was inspired by what they found at the bottom of Lake Huron.

Fall gardening tips for small urban yards
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Landscape expert Connie Rivera dishes out some tips for better gardening this fall in the Chicago area.

Star watchers, rejoice: Palos Preserves named largest Urban Night Sky Place in the world

The Palos Preserves comprises 6,600 acres and only has four buildings. Satellite data shows that it the area emits nearly 1,000 times less light than downtown Chicago, making it perfect for watching the stars.

Heat index could reach 110 degrees in some Chicago suburbs on Wednesday

DANGEROUS HEAT: Hot and humid conditions continue in the Chicago area on Wednesday, especially south of I-80 where a Heat Advisory is in effect. Expect temperatures to feel like it's close to 110 degrees.

Rain falls atop Greenland's ice sheet for first time on record

Greenland’s ice sheet experienced temperatures above freezing for about nine hours on Aug. 14, allowing rain to fall.

Wildfire smoke reaches North Pole for 1st time in recorded history

Smoke from dozens of wildfires burning in Russia reached the North Pole for the first time in recorded history, NASA said.

'Code red for humanity': UN climate change report warns of 'unprecedented' impacts

A U.N. report said Earth’s climate is getting so hot that temperatures will probably blow past a level of warming that leaders have sought to prevent.

Microplastics pollution taking over the Great Lakes
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Eric Freedman, journalist and professor at Michigan State University, talks about the disturbing trend of microplastics infiltrating Lake Michigan and the detrimental health effects they can pose.

California could shut off water for thousands of farmers

California regulators are planning to stop thousands of farmers from taking water out of the state's major rivers and streams because of a worsening drought.

Jeff Bezos wants to move all ‘polluting industry’ into space

Amazon founder Jeff Bezos said his trip to space has inspired him to fight even harder to combat climate change and move all “polluting industry” to space.

Video: Dogs rescued from deadly European floodwater

A video shows some people in Belgium rescuing a pair of dogs that were trapped in the floodwater that’s devastated Western Europe and killed nearly 200 people.