Geologists studying the phenomenon say the fissure is likely a reflection of aquifer depletion.

Food can be grown under Martian conditions, making future Mars settlements even more feasible.

Spiders eat several hundred million tons of insects per year, a new study finds, a global feast rivaling the yearly meat intake of humans.

By giving away free bananas in Seattle, Amazon is disrupting local businesses.

The levels are reportedly safe for humans, but they're high enough to harm bees — and that's bad news for us, too.

A new label will certify foods grown in soil and animal products from pastured animals and would rule out hydroponic and aquaponic techniques.

The vanilla crop is getting hammered by low yields, climate change, speculation and theft.

Many cultures have end-of-growing-season holidays that are similar to Thanksgiving.

Beijing turns to Brazil to make up for its shortfall in U.S.-grown soya beans.

The Anthropocene Era now has an official beginning.

Jim Motavalli shares an excerpt from his just-released book, ​"The Real Dirt on America's Frontier Legends"

From contacting your representatives to signing petitions, here are 5 ways to make your voice heard, and 2 that aren't worth your time.

From the hidden costs of our digital world to the frozen edges of civilization, here are a few films to catch this year.

#ILookLikeASurgeon aims to inspire inclusion and diversity in the surgical field.

British Prime Minister Theresa May is avocado toast after young people rise up to vote.

Micro-volunteering lets you give back when there's no room for another commitment.

Tina Solera made it her life's mission to save the galgo, a traditional dog of Spain that has fallen into deep disregard.

Hardened inmates let a dog's love open the door to their hearts through the Pawsitive Change program.

Meet LeeAnne Walters, the Flint mother fighting for clean water in her community and elsewhere. For her efforts, she won the Goldman Environmental Prize.

Newborn coyotes whose mother disappeared are saved by a wildlife rehabilitator and are singing like angels.

A teacher in a rural community in Virginia is running 100 miles in 24 hours to send her students to college.

The shelter was swamped with calls to adopt dumped kittens.

Galgopod creates a lifeline for some of the world's most tragic dogs.

A puppy named Dallas who was almost euthanized without ever leaving the shelter just landed a dream job: As a police K9.

Miss Willie the dog spent 12 years on a chain before she finally got to see the world.

Boyan Slat’s system has arrived at the Great Pacific Garbage Patch, and it's already collecting plastic.

In 2013, Bush shaved his head in solidarity with a young toddler with leukemia.

WildArk wants to inspire action that encourages conservation action and community engagement.

New initiative to raise awareness of child homelessness features Lily, a character first introduced in 2011 to address food insecurity.

The landmark Royal Victoria Hospital in Montreal will will provide a lifeline for homeless people and their pets.

Pat Smith, 70, successfully completed a New Year's resolution to visit and help clean 52 beaches in 2018.

An online petition is calling on toothpaste manufacturers to drop cardboard box packaging.

The haka is a traditional Maori routine performed at many ceremonies in New Zealand. Here, two groups respond to the terrorist attack on 2 New Zealand mosques.

47 animals were saved after a daring mission to a zoo in the Gaza Strip.

This revolution isn't being led by baby boomers, but they are a big part of it.

Habitat conservation and international assistance have helped India's tiger population rise 30% since 2015.

Mimi Ausland began as an advocate for animals with her interactive quiz website that donates food to shelters. Now, she's tackling plastic waste in the ocean.

Rob Greenfield is a hands-on activist who has participated in many high-profile environmental feats to raise awareness about people's impact on the planet.

Researchers mapped the route food takes from farms to homes.

The new facility is Southern Company's fourth in the state, and another example of the company's commitment to renewable energy.

These small-scale solar systems can bring communities impacted by the bushfires and flooding back online in as little as a day.

Southern Company CEO Tom Fanning discusses why our ethics and values are critical to our personal and professional character.

Ever wonder how many balloons it would take to lift you off the ground? Erik Roner just found out.

Weather has grounded the Solar Impulse 2's trip across the Pacific Ocean, but when its pilots embark on the flight, they'll use meditation to stay alert.

The ARK at JFK will boast luxurious accommodations for all species — but not people.

Drones could rule the skies, but only if their operators follow the rules.

Genetic tests are showing that individuals from Texas might breed with individuals from Japan or South America.

The Virgin Galactic founder envisions a near-future where space travel is as easy (and luxurious) as first-class air travel.

Despite fantastic cabin service and other amenities, these sky marathons can tax even seasoned travelers.

Are you spontaneous enough to take a surprise vacation? Try travel company Pack Up + Go.