Join NBC in celebrating Earth Week, April 19 to 25, and in aiming for #NoFoodWasted.

Tuesday, Apr 22, 2014 at 06:58 PM EDT

Going Green: 4 Questions on Sustainable Shopping

Going Green: 4 Questions on Sustainable Shopping

From toothpaste to wedding dresses, shoppers across the country have no trouble filling their carts with products that claim to be good for the environment. As Earth Day kicks off, here's a look at the latest...

Tuesday, Apr 22, 2014 at 08:31 AM EDT

Earth's Cousin: NASA Finds Planet That Can Sustain Life

Earth's Cousin: NASA Finds Planet That Can Sustain Life

Scientists have discovered a planet called Kepler-186f that is 490 light-years away and could sustain life, NASA said in a report this week.

Wednesday, Apr 23, 2014 at 01:05 PM EDT

Zoo Launches 'Endangered Song' to Help Save Tigers

Zoo Launches 'Endangered Song' to Help Save Tigers

Indie rock band Portugal. The Man and the Smithsonian's National Zoo released an "endangered song'' Tuesday for Earth Day to demonstrate the dwindling number of about 400 Sumatran tigers left in the world.

Tuesday, Apr 22, 2014 at 02:43 PM EDT

Lights Off, Screens On: Save Energy, Win Prizes

Lights Off, Screens On: Save Energy, Win Prizes

Pledge how many lights you'll shut off for a chance to win an energy-efficient smart TV or a Green is Universal prize pack during Earth Week.

Friday, Apr 18, 2014 at 10:39 AM EDT

After Year of Extremes, Investigating Effects of Climate Change

After Year of Extremes, Investigating Effects of Climate Change

For the last year and a half, there has been all manners of weather, from a bone-chilling deep freeze to searing heat, drought and fire. NBC’s Ann Curry traveled to far corners of the planet searching for...

Friday, Apr 18, 2014 at 10:42 AM EDT

Study Offers Bleak Climate Change Outlook

Study Offers Bleak Climate Change Outlook

A new massive report on global warming says dangers will worsen as the climate changes.

Friday, Apr 18, 2014 at 10:33 AM EDT

2.7 Million-Year-Old Soil Found Deep Beneath Greenland's Ice

2.7 Million-Year-Old Soil Found Deep Beneath Greenland's Ice

Buried thousands of feet under Summit, the highest point on Greenland's ice sheet, is a soil born before humans walked the earth. The 2.7-million-year-old silt is a remnant of the verdant tundra that covered...

Friday, Apr 18, 2014 at 10:33 AM EDT

Ohio Geologists Link Seismic Activity to Fracking

Ohio Geologists Link Seismic Activity to Fracking

State geologists in Ohio have for the first time linked earthquake activity in the Marcellus Shale basin to hydraulic fracturing, confirming the suspicions of activists pushing for drilling limits in the...

Friday, Apr 18, 2014 at 10:33 AM EDT

Fish-Friendly Dams? Scientists Race to Reduce Turbine Trauma

Fish-Friendly Dams? Scientists Race to Reduce Turbine Trauma

A hydroelectric dam building boom in the Pacific Northwest in the past century drove dozens of salmon runs to extinction and has cost taxpayers billions of dollars to try to save the fish that remain.

Thursday, Apr 17, 2014 at 12:00 PM EDT

The 'Zero-Emission' Engine Is Almost Ready for Prime Time

The 'Zero-Emission' Engine Is Almost Ready for Prime Time

With the aid of government spending and joint efforts by Ford and Nissan, Daimler — Mercedes’s parent corporation — aims to start selling hydrogen-fueled cars to the public as early as 2017.