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Science / Our Planet

Returning Rapids Project investigator Chris Benson examines old photos of the Colorado River to see how it has changed over time.

Citizen Scientists Document a Recovering Colorado River

The Returning Rapids Project charts a resurgent waterway and its surrounding ecosystems

Kelp cultivated in underwater forests could help curb climate change, both because of the carbon these forests capture and because products made from kelp can reduce carbon emissions.

Could Sinking Tons of Seaweed to the Ocean Floor Help Combat Climate Change?

Submerged seaweed can store carbon at the bottom of the sea, but how effective the strategy will be remains unclear

Ocean drainage basins of the world

These Entrancing Maps Capture Where the World’s Rivers Go

Cartographer Robert Szucs uses satellite data to make stunning art that shows which oceans waterways empty into

I thought I saw more red foliage this fall. Is that related to climate change?

Does Climate Change Affect Leaves’ Fall Colors? And More Questions From Our Readers

You’ve got questions. We’ve got experts

Left, Bartram’s illustration of Annona grandiflora, a member of the pawpaw family, which appeared in the naturalist’s 1791 Travels, right.

More Than 200 Years After He Toured Florida, America’s First Great Environmentalist Is Inspiring Locals to Reconnect With Nature

A new generation is discovering the rambling Southern route of William Bartram and his legendary 1791 travelogue

Plastics break down over time into micro- and nanosized particles that litter our water and air.

One Liter of Bottled Water May Contain 240,000 Tiny Plastic Fragments

A new technique reveals that the liquid may contain 10 to 1000 times more plastic pieces than previously thought

A leatherback turtle returns to the sea after nesting. Females spend three to five months at a time nesting, laying eggs for periods of about nine days.

Should Endangered Turtles Have Legal Rights?

To protect the majestic reptiles around the isthmus of Panama, an ambitious conservation group digs deep both on and off the beach

Costa Rica's Arenal volcano spews geysers of lava, ash and toxic gases

Why Central American Volcanoes Are Ideal for Studying Earth’s Evolution

The volcanic arc extending from Mexico to Costa Rica expels a variety of magma types that make for a geological paradise

This year was marked by many broken records in the ocean.

The Top Ten Ocean Stories of 2023

Major discoveries, an undersea tragedy and international cooperation were some of the biggest saltwater moments of the year

Sultan al-Jaber, the president of COP28, and other participants at the conference applaud. The final document resulting from COP28 mentioned transitioning away from fossil fuels, rather than phasing them out over time.

The Six Biggest Takeaways From COP28

The United Nations climate change conference drew praise for new pledges and criticism for watered-down language

Covid-19 lockdowns had all kinds of effects on wild populations, helping some and hindering others. In one Mexican marine park, though, the sudden lack of tourists led to an increase in the density and diversity of marine species.

During Covid-19 Lockdowns, Fish Flourished in This Park

In the absence of tourists, the animals increased within Mexico’s Cabo Pulmo National Park

Our ten favorite science books of the year covered everything from astronomy to undersea exploration.

The Best Books of 2023

The Ten Best Science Books of 2023

From stories on the depths of the ocean to the stars in the sky, these are the works that moved us the most this year

In 2023, wildfires ravaged communities in Canada, Hawaii and elsewhere across the globe.

There's More to That

Why Wildfires Are Burning Hotter and Longer

As conflagrations become more difficult to contain, a citizen movement to try to manage them through “prescribed burns” is growing

Svalbard reindeer graze during an early snowfall. If temperatures rise again, food may be trapped under ice during a critical time for packing on winter pounds.

Northern Europe and the British Isles

The World’s Smallest Reindeer Get Their Day in the Sun

On Norway’s Svalbard archipelago, a rare animal is thriving—for now

Why can't machines process CO2 the way trees do?

Why Can’t Machines Process CO2 Like Trees? And More Questions From Our Readers

You’ve got questions. We’ve got experts

In the village of Tautira, Tahiti, the community came together to impose their own set of fishing restrictions to ensure the availability of fish into the future.

How an Ancient Practice Aids Marine Conservation

In French Polynesia, the art of rahui puts everyone in charge of protecting the sea

The Aftel Archive of Curious Scents has been drawing commercial perfumers with a nose for aromas, gardeners, cooks and others since 2017.

This California Museum Is Home to Hundreds of Nature’s Scents

Perfumer Mandy Aftel’s spellbinding collection of rare essences and artifacts is on display at the Aftel Archive of Curious Scents in Berkeley

A tornado churns up dust at dusk near Traer, Iowa.

How and Why Do Violent Tornadoes Form?

Scientists hope new technology and computing power will help them understand destructive twisters

Carved Cucurbita pepo traditionally grace stoops around Halloween.

Five Tips and Tricks for a Perfect Jack-O’-Lantern

A horticulturalist with the New York Botanical Garden provides advice for prolonging the life of your pumpkin

With a baby in tow, a gray-headed flying fox uses her large eyes to navigate, rather than relying on echolocation as other bat species do. 

Why Australians Are Growing to Appreciate These Giant, Threatened Bats

Once seen as a menace, the gray-headed flying fox brings new life after recent devastating wildfires

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