Why was January Earth’s hottest on record?
Global warming and loss of vegetation on the Earth’s surface are part of the story, but scientists aren’t sure what else could have caused the January milestone.
Kara Holsopple
Bird flu is killing wild birds and mammals, too
The highly pathogenic avian flu strain is infecting animals and people on dairy and poultry farms, but mortality is rising among wild birds, mammals, and even pet cats.
Campaign pushes for more voices in the fight against air pollution in Allegheny County
The "Freedom to Breathe" campaign was launched in Allegheny County to address the disproportionate impact of pollution on Black and brown communities.
Trump’s executive orders champion fossil fuels, knock back wind power
We break down President Donald Trump's executive orders that declare an energy emergency, prioritize drilling and pull back on wind and EV development.
A new book takes on the dangers of radioactivity in the oil and gas industry
Science journalist Justin Nobel's shocking seven-year investigation looks at how the industry has skirted regulations and endangered public health.
A new book provides hope for restoring the atmosphere from climate pollution
Climate scientist Rob Jackson tells the stories of people cutting emissions and trying to remove greenhouse gases already in the atmosphere.
New book about deer invites us to take a closer look at ourselves, too
Erika Howsare's "The Age of Deer" investigates the relationship between deer and people throughout history.
Get to know trees on a winter walk with Tree Pittsburgh
Become a nature detective this winter to learn to identify trees by their shapes, seed pods and branch patterns.
Buying refurbished electronics to save money and the planet
The environmental group PennEnvironment put together a guide with tips on buying refurbished laptops, phones and tablets for holiday gifts.
Common terns successfully breed at Presque Isle State Park for the first time in 60 years
The shorebird species is endangered in Pennsylvania and two juveniles fledged their nest on sandy, Lake Erie beach in August.
