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Science / Our Planet

Dubai in the United Arab Emirates is one of the cities that could pass a heat and humidity threshold that would make outdoor conditions unlivable for humans.

Age of Humans

Killer Heat Is Expected in the Persian Gulf by the End of This Century

If no efforts are made to reduce greenhouse gas emissions, the Middle East may experience heat that is intolerable to humans

Nikiko Masumoto works with raisins on her family's farm.

Age of Humans

Where Will Our Future Food Come From? Ask a Farmer

Two farmers with different viewpoints talk about organic farming, GMOs and farm technology

Ask Smithsonian

Why Do Astronauts on the International Space Station Float and More Questions From Our Readers

You asked, we answered

Montsechia’s origins in freshwater lakes challenge the idea that flowers evolved on land before moving into water.

These Are the Oldest Known Flowers in the World

Found in the fossil record, these plants are more than 100 million years old

By the time the Salt River reaches downtown Phoenix, it is a river in name only. Some scientists think that is why a non-native plant, the salt cedar, is thriving while native flora are suffering.

Age of Humans

How We Created a Monster In the American Southwest

The salt cedar is often seen as an un-killable invader. But are humans the real reason this unwanted plant is thriving?

Soldiers pose with bison heads captured from poacher Ed Howell. In the early days of Yellowstone, poaching, setting the park on fire and defacing its hot springs were rampant.

Age of Humans

How the U.S. Army Saved Our National Parks

Before the National Park Service, Yellowstone was guarded by the cavalry. Without them, we might not have national parks today

Age of Humans

See the Two Ship Graveyards That May Become New Marine Sanctuaries

The first marine sanctuaries approved by NOAA in 15 years are home to a plethora of shipwrecks

The wings of the Arctic fritillary butterfly have decreased in size since 1996.

Age of Humans

Greenland’s Butterflies Are Shrinking as Temperatures Rise

In the high Arctic, hotter summer weather may be taxing insect metabolism

Baby tree saplings, cloned from giant redwoods in California, chill out in the Archangel Ancient Tree Archive's propagation area.

Age of Humans

The Race to Save the World’s Great Trees By Cloning Them

A nonprofit dedicated to preserving old, iconic trees is cloning them in hopes of preserving them for the future

The Kirtland's warbler needs humans to cut and replant the trees it nests in. Without this work, the species' painstaking recovery from less than 1,000 males to over 2,000 could be erased.

Age of Humans

This Bird Didn’t Start the Fires, But It May Need Them to Survive

An endangered bird once threatened by humans now relies on us for its survival

Cumulus clouds don't literally have silver linings, but their edges are sharper than we thought.

New Research

Holograms Show That Puffy Clouds Have Sharp Edges

A laser-based imaging technique let scientists see what happens to water droplets at the borders of cumulus clouds

Age of Humans

The Age of Humans: Living in the Anthropocene

A special look at the ways humans are transforming the planet and the projects that may shape a more sustainable future

Queen bumblebee, Bombus balteatus, foraging for nectar on the alpine wildflower Polemonium viscosum.

New Research

Bee Tongues Are Getting Shorter as Temperatures Warm

In Colorado, alpine bumblebee tongues are shrinking in response to shifting wildflower populations

What gives your local Chardonnay that je ne sais quoi? It just might be the regional microbes.

New Research

Wine Gets Some of Its Unique Flavors From Regional Microbes

Small genetic differences in a single species of yeast produce distinct mixes of chemicals that contribute to terroir

So far, nine states have tried to pass laws that encourage a "teach the controversy" approach to climate change.

Age of Humans

See Where Climate Science Conflict Has Invaded U.S. Classrooms

Conservative politicians are introducing bills that promote teaching climate science as controversial

Cities can be problems and solutions for environmental sustainability.

Age of Humans

Creating an Equation for Cities May Solve Ecological Conundrums

In this Generation Anthropocene podcast, scientists explore the ways urbanization might lead to a greener future

Reproduction of early English vessels at Jamestown, Virginia.

Age of Humans

Rising Seas Threaten to Swallow These Ten Global Wonders

Climate change-induced increases in sea level are forcing archaeologists and communities to get creative and make tough calls

Salgado has documented many indigenous tribes and their traditions. Here, men are decorated with feathers and paint for a reahu funerary ceremony.

Sebastião Salgado Has Seen the Forest, Now He’s Seeing the Trees

He documented human suffering around the world. But now, back in his native Brazil, the renowned photographer is healing the devastated landscape

How Powerful Is a Volcanic Eruption and More Questions From Our Readers

You asked, we answered

Twins Ida and Irene practice swimming in a learn-to-swim program on Eydhafushi, an island in the Maldives.

Age of Humans

Third-Graders in the Maldives Discover the Beauty Beneath Their Seas

Many tourists have experienced the Maldives’ beauty. Most Maldivians haven’t, because they don’t know how to swim

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