November 17, 2017, 1 p.m. by Mary Jo DiLonardo
The spill comes just days before Nebraska decides on proposed Keystone XL pipeline.
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.
Carbon dioxide levels are reaching heights we haven't seen in 800,000 years
October 30, 2017, 11:08 a.m. by Noel Kirkpatrick
CO2 concentration in the atmosphere saw a sizable jump between 2015 and 2016.
How Iceland is regrowing forests destroyed by the Vikings
October 27, 2017, 7 a.m. by Russell McLendon
Only about 2 percent of Iceland is now forested, down from as much as 40 percent before Vikings arrived.
Keystone pipeline spills 210,000 gallons of oil in South Dakota
How to make a Swedish fire log
Cool math trick: Converting between miles and kilometers
10 surprising facts about palm trees
7 reasons why Arctic sea ice matters
Remember that kid who invented a way to clean up ocean plastic? He's back, and it's happening