November 21, 2017, 10:29 a.m. by Matt Hickman
Climate change is pushing trees in many cities into turbocharge mode.
Days after oil spill, Nebraska approves Keystone XL pipeline project
November 20, 2017, 11:57 a.m. by Mary Jo DiLonardo
Days after the spill, Nebraska allows proposed Keystone XL pipeline project to move forward.
Drilling threat looms large for Arctic National Wildlife Refuge
November 20, 2017, 6:43 a.m. by Noel Kirkpatrick
The plan to drill in the Arctic National Wildlife Refuge is linked to the GOP's tax overhaul plan.
NASA captures new photos of runaway iceberg, and it's bigger than Delaware
November 15, 2017, 2:35 p.m. by Noel Kirkpatrick
Iceberg A-68 is so large it looks like it's still part of the Larsen C ice shelf.
Canada opens first permanent highway to remote Arctic coast
November 15, 2017, 11:11 a.m. by Michael d'Estries
The unpaved road is a game-changer for isolated residents who previously traveled on ice roads.
Volunteers help bring life back to Grand Canyon springs
November 13, 2017, 1:30 p.m. by Michael d'Estries
The Grand Canyon Trust is spearheading efforts to restore watering holes critical to desert species.
'Breathtakingly audacious' project aims to plant 73 million trees in Amazon
November 1, 2017, 1:02 p.m. by Mary Jo DiLonardo
The project will cover nearly 70,000 acres.
Haunting time-lapse reveals how much of the night sky we're missing
October 31, 2017, 1:12 p.m. by Christian Cotroneo
The view from these ghost towns is scary and stunning.
How to make a Swedish fire log
Cool math trick: Converting between miles and kilometers
Urban trees are growing — and dying — faster than their rural counterparts
The best hiking spots in the U.S. (and how to get ready)
10 surprising facts about palm trees
Plan your perfect road trip to a U.S. national park