Global Warming

Los Angeles County is the most at risk for climate-related disasters out of 3,000 counties analyzed in the United States.

Los Angeles Rated Most Susceptible to Natural Disasters, According to FEMA Data

The report explains how damaging hypothetical, extreme weather scenarios would be and does not represent how frequently devastation actually occurs

Pakistan, home of Deosai National Park, is one of the countries whose leaders signed the pledge to protect 30 percent of land and water.

These Conservation Stories Prove 2020 Was Not All Bad News

From the Smithsonian’s Earth Optimism team, comes a surprising list of successful efforts making a difference

Satellite records show a 13 percent decrease in sea ice per decade since the 1980s.

Arctic Sea Ice Fails to Refreeze by Late October, Setting a New Record

At this rate, the Arctic will experience its first ice-free summer as early as 2035

Bat ticks (Ornithodoros) under a microscope. These parasites primarily feed on bats and were collected from bats roosting beneath a Mayan Temple in Belize. Very little is known about these ticks and many species are unknown to science.

Why We Need to Save the Parasites

Extinction will have lasting and far-reaching consequences for biodiversity, and subsequently for humans

A visual representation of global methane from January 26, 2018. Red areas indicate higher concentrations of methane swirling in the atmosphere.

World Methane Emissions Hit New High

Agriculture and fossil fuels drive a surge in global emissions of the powerful greenhouse gas

A fire in the Yakutia region of Siberia in early June seen from the air. A June heat wave saw temperatures in Verkhoyansk, a town in Yakutia, hit 100 degrees Fahrenheit.

Earth Could Hit Critical Climate Threshold in Next Five Years

Report: 20 percent chance that one of the next five years will see annual global temperatures rise to 2.7 degrees Fahrenheit above pre-industrial levels

A forest fire in central Yakutia (Sakha Republic).

The Far-Reaching Consequences of Siberia's Climate-Change-Driven Wildfires

Smoke from the blazes is now reaching the West Coast of the United States

The interstate was empty in San Francisco after stay at home orders were issued in California in early April.

Carbon Emissions Are Decreasing During the Pandemic but Could Bounce Back Fast

At the height of COVID-19 restrictions, daily carbon emissions declined 17 percent compared to 2019

40 million people rely on the Colorado River for water, but its flow is falling by more than 9 percent with every 1.8 degrees Fahrenheit rise in temperature.

The Colorado River Is Shrinking as Temperatures Rise

River flow could drop by 19 to 31 percent if carbon emissions continues at their current pace

In 2019, the average temperature across global land and ocean surfaces was 0.95 degrees Celsius (1.71 degrees Fahrenheit) above the 20th century average.

The 2010s Were the Hottest Decade on Record. What Happens Next?

The news hasn’t come as a surprise to climate scientists, but all urge immediate action

These are ten of the biggest strides made by scientists in the last ten years.

The Top Ten Scientific Discoveries of the Decade

Breakthroughs include measuring the true nature of the universe, finding new species of human ancestors, and unlocking new ways to fight disease

Loss of oxygen allows algae to thrive, which in turn has cascading effects on marine ecosystems.

The World’s Oceans Are Being Starved of Oxygen

An alarming report found that there are 700 marine sites impacted by low oxygen levels—up from 45 in the 1960s

An image of the Camp Fire in Northern California on November 8, 2018, from the Landsat 8 satellite.

Scientists Around the World Declare 'Climate Emergency'

More than 11,000 signatories to a new research paper argue that we need new ways to measure the impacts of a changing climate on human society

By collecting images and GPS data from citizen divers, scientists can get a better sense of the health of the entire Great Barrier Reef.

Massive Citizen Science Effort Seeks to Survey the Entire Great Barrier Reef

Only about 1,000 of 3,000 individual reefs have been documented, but the Great Reef Census hopes to fill in the gaps

Three green sea turtles, Chelonia mydas, on a coral reef, Heron Island, Great Barrier Reef, Australia.

Coral Reefs Face the Dual Threats of Ocean Acidification and Erosion

As coral tissues die off, the exposed calcified skeleton becomes vulnerable to organisms that eat away at the dying reefs

One of the Dinizia excelsa or angelim vermelho trees, which can grow over 80 meters. The tallest, as measured by satellite, towered 88.5 meters above the forest floor.

Researchers Discover the Tallest Known Tree in the Amazon

Satellite images and a trek into the rainforest reveal a group of trees over 80 meters, or about 260 feet, and one as tall as 88.5 meters

The site of Brattahlid, the eastern settlement Viking colony in southwestern Greenland founded by Erik the Red near the end of the 10th century A.D.

A Warming Climate Threatens Archaeological Sites in Greenland

As temperatures rise and ice melts, Norse and Inuit artifacts and human remains decompose more rapidly

Ginkgo has survived three mass extinctions, including the one that killed the dinosaurs.

Smithsonian Scientists Are Using Ginkgo Leaves to Study Climate Change—They Need Your Help

Citizen scientists can submit leaf samples from their hometowns through the end of August

Climate change-induced heatwaves trigger Arctic wildfires, which then release carbon dioxide and pollutants into the atmosphere

The Arctic Is Experiencing Its Worst Wildfire Season on Record

Arctic infernos released 50 megatons of carbon dioxide—the equivalent of Sweden’s total annual emissions—into the atmosphere in June alone

Mount Bromo erupting in Indonesia. Prior to 20th century industrialization, volcanoes were a primary driver of regional temperature changes over timescales of two or three decades, one of the studies found.

Modern Climate Change Is the Only Worldwide Warming Event of the Past 2,000 Years

New research finds that previous periods of warming and cooling driven by natural causes were regional shifts in temperature rather than global events

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