It's called dendrochronology, the study of data culled from the growth patterns of trees. And it can tell us a lot.

Triassic fossils found on lands that were previously part of Bears Ears National Monument could fall under 'multiple-use' management.

Preserved human footprints in the White Sands National Monument give us insights into early humans' hunting practices of giant ground sloths.

HIV might never have become a global pandemic if it wasn't for the ecology of what is now known as Kinshasa, and what was then a 1920s colonial hub.

Located under the Hiawatha Glacier, the impact crater is one of the largest on Earth.

A whole new kingdom will need to be created to classify Hemimastix kukwesjijk, the organisms found in a random dirt sample.

Elasmotherium sibiricum, the so-called 'Siberian unicorn,' is not as closely related to modern rhinos as once thought.

Anjouan is an island between Africa and Madagascar littered with sedimentary rocks called quartzite that don't belong there. Are they a chunk of Gondwana?

Researchers are calling the wild lands of 12 million years ago the 'Texas Serengeti.'

From nearsightedness to bone mass, a trip to the International Space System has a notable effect on astronauts' bodies.

Arctic sea ice, the white cap that covers the watery northern edge of the planet, has melted back to a record low level.

Researchers have created a laser powerful enough to detect minute concentrations of gases in the atmosphere or in your mouth.

The climate-changing greenhouse effect exists and has been directly measured in the United States, a new study reports.

Methane is a natural substance that can be produced over time through biological routes. This colorless, odorless gas has huge potential as a fuel, but it also

Scientists estimate more than 7,000 dangerous methane 'bumps' have formed in Siberia's Yamal and Gydan peninsulas over the last couple of years.

A 2017 study published in Environmental Research Letters offers a number of ways to reduce your carbon emissions, and having fewer kids topped the list.

New study finds that nanoparticles commonly used in antibacterial socks may significantly boost greenhouse gas emissions.

A new study explores the implications of a Greenland that's actually green.

Scientist captures stunning sunrise during a research mission to study polar ice in the Arctic circle.

The narrowest building in Poland is the work of Israeli writer Edgar Keret.

By foraging in your backyard, you can turn a crop of cheerful but maligned dandelions into a tasty, traditional French soup.

Jadav Payeng single-handedly turned a barren sandbar in northern India into a lush new forest ecosystem.

Working with the nonprofit Solar Aid, students earn enough to bring electric light to a school in Kenya

CANLOVE, a collective of graffiti artists, is on a mission to collect and upcycle as many spray cans as possible into art.

Each of us is a cloud of microscopic particles, chemicals and microorganisms swirling around us that's always there. It's called an exposome, and it's unique.

Appalachian residents witness to the atrocities of mountaintop removal as S. 696 hits the Senate.

Finally! The EPA declares that 79 mountaintop coal mining permits may violate the Clean Water Act.

A young parkgoer returned a rock she took from Smoky Mountains National Park along with a drawing and a nice letter.

Resist the urge to throw away your old gadgets. Here's how to recycle, donate and sell.

U.S. Postal Service expands electronics recycling program. Customers can trade in old cellphones for cash at 3,100 USPS retail locations.

The O'Neill Passive House, America's first passive house retrofit project, requires as much energy to operate as a standard hair dryer.

Michael Pollan discusses how the food system uses too much fossil fuel and reminds us that solar energy from plants is free.

A nonbinding resolution calls for meatless options to be offered.

If organic foods can’t contain genetically modified ingredients, you’d think organic food companies wouldn’t have a problem with labeling foods that conta

Dig into MNN's recipe archives for eco-friendly and healthy food and drinks to enjoy while critiquing gowns and arguing about who should win this year's Academy

Food news and items of interest from around the Web — Giada de Laurentiis, Jersey Girl Cooks and weeknight dinner parties.

With a major summertime 'drinking holiday' just around the bend, make sure that you have a few libation-related odds and ends on hand for when your thirsty part

Forget the gold paper plates and the disposable red carpet for your Oscar party. Bring out the china, the crystal and the good food.

'What are we supposed to do?' one hiker whispered as a puma stared them down in Sequoia National Park.

The technologically advanced Stoosbahn ascends and descends over 2,000 feet in about four minutes.

The story of how a day spent on a frozen Maine lake skating turned into a mildly viral video.

The Finns love to forage, treating the outdoors in Finland like a wild supermarket. Here's how to start this habit where you live.

Markku Lahdesmaki's photo series 'Avanto' illuminates the Finnish hobby of ice swimming.

Aaron Tucker was hoping a job interview would change his life, but he wound up saving a life instead.

The 'Icelandic Model' may be the country's best export.

In 2015, Albuquerque launched an innovative program aimed at helping the area's homeless. Instead of ticketing panhandlers, city officials offered them jobs.

Walter Carr, a dedicated young employee, wins accolades in Alabama for going above and beyond to get to his first day of work.

As the government shutdown drags on, Andrés and his team jump in to help - again.

The Dutch do it again with a new cycling path in the northeastern city of Zwolle that's made from old plastic bottles and packaging.

The GOP is treating the EPA chief like a human punching bag — but she can strike back.