These are the big cities where carbon emissions are already dropping
October 10, 2019, 1:33 p.m. by Mary Jo DiLonardo
Austin, Athens, Venice and Lisbon are the latest cities to meet global goals.
Border wall construction begins in Organ Pipe Cactus National Monument
September 16, 2019, 2:02 p.m. by Lindsey Reynolds
The federally protected and UNESCO-recognized wilderness area is front and center in the border wall debate.
Drilling in Arctic National Wildlife Refuge is one step closer to reality
September 16, 2019, 12:55 p.m. by Noel Kirkpatrick
The plan to drill in the Arctic National Wildlife Refuge is hotly contested between oil companies, Alaskans and conservation groups.
A chameleon's colors aren't just beautiful, they're amazingly complex
September 13, 2019, 9:53 a.m. by Jaymi Heimbuch
Scientists take a deeper look at how chameleons change color, and learn some tricks that could benefit humans.
'Tower of Voices' honors the Sept. 11 bravery of Flight 93
September 11, 2019, 10:03 a.m. by Noel Kirkpatrick
National memorial site in Pennsylvania honors the passengers and crew of Flight 93.
The most extreme bolts of lightning strike in winter
September 11, 2019, 8:27 a.m. by Mary Jo DiLonardo
These 'superbolts' are more common over water.
Inspired by Bob Ross, Michigan is planting thousands of 'happy little trees'
September 9, 2019, 8:26 a.m. by Mary Jo DiLonardo
It's a great way to celebrate a 100th birthday.
What happened to those delightfully cool summer nights?
August 29, 2019, 11:55 a.m. by Mary Jo DiLonardo
Looks like we can blame climate change for this too.
White rhinos team up to save northern relatives from extinction
August 27, 2019, 2:45 p.m. by Mary Jo DiLonardo
Researchers hope these rhinos could serve as surrogate mothers, saving the northern white rhino subspecies.
Visiting a park can make you as happy as Christmas
August 22, 2019, 8:06 a.m. by Mary Jo DiLonardo
That upbeat mood can last as long as 4 hours.
Wildlife Photographer of the Year winners will take your breath away
How safe is cured, smoked or salted fish?
Parallel worlds exist and interact with our world, say physicists
How to find a hobby (and why you should)
The truth about the tree that grows 'brains' and scares small children
8 things to know before getting a pet rabbit
Why you should mulch leaves, not rake them
When will fall leaves be at their peak near me?
7 amazing soups for soup weather
5 ways to beat fall allergies
Why does autumn have two names?
5 classic fall recipes
Thanks to seed savers, Glass Gem corn exists
10 best places outside the U.S. for fall color