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Climate Change

The Mauna Loa Observatory in Hawaii recorded the highest annual jump in atmospheric carbon dioxide levels since its records began in 1958.

Hawaiian Observatory Clocks Highest Annual Jump in Atmospheric Carbon Dioxide Since Its Records Began 67 Years Ago

The change measured by the Mauna Loa Observatory was likely driven by wildfires and continued burning of fossil fuels, scientists say

A view of the Palisades fire on January 9. The strong Santa Ana winds that fueled much of the L.A. wildfires’ destruction are expected to relax for a few days.

L.A. Fire-Fueling Winds Slow Down, Offering a Short Reprieve. What Are the Santa Ana Winds, and Why Do They Fan the Flames?

The seasonal gusts have exacerbated the deadly fires, and they’re expected to pick back up next week

Experts are concerned that artifacts and bootprints on the moon might be affected by lunar landing missions, space tourism and space junk.

The Moon Makes the List of the World’s Most Endangered Cultural Heritage Sites in 2025

Earth-bound landmarks ravaged by war, climate change, tourism and other threats also landed in the World Monuments Watch report

The two Just Stop Oil activists spray-painted "1.5 is dead" on the gravestone of Charles Darwin.

Climate Activists Spray-Paint Warning on Charles Darwin’s Grave

The two protesters hoped to draw attention to reports that global temperatures in 2024 exceeded 1.5 degrees Celsius above pre-industrial levels for the first time

The trees became visible as an ice patch melted on the Beartooth Plateau, which is part of the Greater Yellowstone Ecosystem.

Melting Ice Reveals Remains of 5,900-Year-Old Trees in Wyoming, Uncovering a Long-Lost Forest

Researchers discovered more than 30 dead whitebark pine trees that were entombed in ice for millennia, representing a bygone ecosystem that could teach us about climate change

An international team of scientists spent four summers working in average temperatures of -25.6 degrees Fahrenheit.

Scientists Drill 1.7 Miles Into Antarctic Ice, Revealing 1.2 Million Years of Climate History

Researchers say a collected sample is the longest continuous record of Earth’s past climate from an ice core

The endangered Woodville Karst cave crayfish (Procambarus orcinus)

Freshwater Animals Are More Fragile Than Thought, With Nearly a Quarter Threatened With Extinction, Study Finds

Species in Lake Victoria, Lake Titicaca, Sri Lanka’s Wet Zone and the Western Ghats of India are particularly vulnerable to the effects of agriculture, human infrastructure and climate change, per the paper

Alpinists ascend along a narrow ridge of ice and snow in the Mont Blanc massif.

Inside One Scientist’s Quest to Understand Why Climate Change Is Making Europe’s Highest Peak More Dangerous

Geomorphologist and veteran climber Ludovic Ravanel is learning how Mont Blanc is shifting—and sharing his discoveries with the Alpine community

Matanuska Glacier north of Anchorage is one of the best spots for a more intense experience in the Alaskan wilderness.

Discover Alaska

Seven Ways to Explore Alaska’s Endangered Glacial World

With the state’s glaciers retreating at alarming rates, there is no time like now to trek, climb, paddle and fly to see them

A northern saw-whet owl in Canada

Meet the Tiny, Adorable Owls That Have Mastered the Art of Hiding

One of the smallest owls in North America, the northern saw-whet lives among us and is rarely seen—but one volunteer science project aims to find them and uncover their secrets year after year

In 2024, engineers used a fluorescent protein found in some jellyfish to create a non-toxic spray that highlights fingerprints at a crime scene.

Seven Scientific Discoveries From 2024 That Could Lead to New Inventions

From indestructible tardigrades to body-merging comb jellies, animals can teach humans so much about medicine, robotics, aging and survival

Daniel Bachman at home in Madison County, Virginia, with his trusty Martin D-18 guitar.

A Brilliant Folk Musician Turned the Natural Sounds of the Blue Ridge Mountains Into Powerful Songs

Daniel Bachman is on a mission to evoke Virginia’s past through strange medleys of sounds

Stories in a wide variety of scientific disciplines made our list this year.

The Ten Most Significant Science Stories of 2024

From a total solar eclipse that captivated our continent to record temperatures that scorched the planet, these were the biggest moments of the year

Sombrero ground lizards (Pholidoscelis corvinus) are endemic to Sombrero Island, north of Anguilla, which means they're found nowhere else on the planet.

This Once-Rare Lizard Bounced Back From the Brink of Extinction After ‘Painstaking’ Restoration Efforts in the Caribbean

In 2018, fewer than 100 Sombrero ground lizards remained on Sombrero Island—but now, more than 1,600 of the critically endangered reptiles are scampering around the limestone landscape

Air Ring 48 attaches to the base of a construction helmet, providing crucial airflow to the sweatiest areas of the head and neck.

Could This New Wearable Device Reduce Heat Stress in Construction Workers?

Architecture students at the University of Hong Kong invented a cooling apparatus that attaches to a construction helmet

A fossil skull of a prehistoric amphibian, found in a 230-million-year-old burrow in Wyoming, turned out to be from an unknown species.

A Paleontologist Cracked Open a Rock and Discovered a Prehistoric Amphibian With a Clever Survival Strategy

Named “Ninumbeehan dookoodukah” by Eastern Shoshone students and elders, the creature burrowed in riverbeds to stay moist during extreme droughts

Researchers found that in 2023, a decrease in low-altitude clouds, specifically over the Atlantic Ocean, drove an increase in the planet's temperature.

Scientists Find Another Reason Why 2023 Was So Hot: a Decline in Low-Lying Clouds

According to new research, Earth might have reflected less solar radiation last year than in any other year since 1940, a trend that adds to the planet’s warming

The sun sets over Death Valley, California, on July 7, 2024, a day when its temperature reached 129 degrees Fahrenheit.

Climate Scientists Project 2024 Will Be the Hottest Year on Record—and the First to Pass 1.5 Degrees Celsius of Warming

After November 2024 was the second warmest November in the books, experts say the year is “effectively certain” to break the heat record set by 2023

Smithsonian magazine’s top science titles this year.

The Ten Best Science Books of 2024

From a deep dive on a fatal space shuttle disaster to a study of a dozen iconic trees, these are our favorite titles this year

New England Aquarium staff treat a cold-stunned sea turtle.

Hundreds of Sea Turtles With Hypothermia Are Washing Up in Cape Cod, Cold-Stunned as Temperatures Drop

New England Aquarium staff and volunteers are treating the reptiles, which have gotten trapped after venturing north earlier in the year. Experts say climate change is leading more turtles to get stranded in the bay

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