Trees collected through Chicago’s annual holiday tree recycling program are turned into mulch and wood chips for use at Chicago Park District locations.
Stories by alex ruppenthal
As winter weather arrives, Chicagoans can seek refuge from the cold at 113 public buildings designated as warming centers.
A 67-acre Southeast Side site served as a dumping ground for Republic Steel for nearly 30 years. Inspection records show the property is contaminated with lead, cyanide, mercury and other potentially harmful pollutants.
Emmanuel Pratt will use a South Side community farm he developed as a “living laboratory” to teach students about contemporary sustainability initiatives.
Northwestern researchers studied the careers of young scientists and found that failure early in one’s career leads to greater success in the long term – at least for those who stick with it.
A 4-pound chunk of a rare type of meteorite that crashed into a Costa Rican village this spring has found its way to Chicago, and experts say the rock likely contains clues to the origins of life on Earth.
The state has recognized a 169-acre section of Harms Woods, which is home to 400 different plant species, as an official state nature preserve, the highest level of protection for land in the state.
The first-of-its-kind exhibit in 2020 will explore the history and culture of the Apsáalooke people, an indigenous group known for its horsemanship, artistic pursuits and matriarchal ways of life.
Ten business leaders are behind the donation – the largest cumulative gift in the university’s history – which will fund scholarships and new campus facilities.
Gov. J.B. Pritzker is asking the federal government to reconsider its decision to deny monetary aid to residents and businesses affected by near-record levels of flooding that hit Illinois this spring.
A team led by several Chicago-area researchers has developed a new method to “upcycle” single-use plastics into a number of commonly used products, such as motor oils, detergents and cosmetics.
Chicago Animal Care and Control says its renovated facility and new medical equipment will allow staff to evaluate animals more quickly and carry out surgical procedures that will ultimately lead to more adoptions.
Sahar, a 9-year-old African lion, arrived in Chicago in 2012 and became a favorite among staff and visitors. He died unexpectedly last month while living at a zoo in Kansas.
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.
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.
The no-kill animal shelter will expand services that have reached 13,000 pets and 6,600 families in Englewood since 2014 as it strives to be an “animal welfare anchor in a community where there are no other pet resources.”
Zoo staff had been working with Siku, a 9-year-old male polar bear, for about a year to train him on behaviors that helped staff collect his blood.
An increasing number of veterans are pursuing careers in fast-growing environmental sectors, like solar and wind energy, says Jessica Klinge, who will lead the Illinois chapter of Green Veterans.
The Low-Income Solar Energy Act would expand an existing program and create new ones to make solar energy more affordable for low-income Americans.
The polar bear has become the poster child for climate change, but increasing temperatures impact many forms of life – including insects. Dr. May Berenbaum weighs in on what that means for the rest of life on Earth.
New “sensory stations” allow visitors to get a more intimate experience of the museum’s iconic dinosaur – including the stench of Sue’s post-meal breath.
Sahar, a 9-year-old African lion, died last week while living temporarily at Rolling Hills Zoo in Kansas as Lincoln Park Zoo renovates its lion house.
Experts say proposed changes to the Endangered Species Act could harm a number of troubled species found in Illinois, including the piping plover shorebird, rusty patched bumblebee and other animals and plants.
By examining 51 crocodile skulls, Field Museum scientist Caleb McMahan was able to identify a previously unclassified species native to New Guinea.
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.
How does scientific discovery happen? And what goes right when the process works? Those are some of the questions behind a newly launched center at Northwestern University’s Kellogg School of Management.