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Climate Change

The iron ocean

Through dust, not rust, the metal plays a complex, controversial role in Earth’s climate

Why solar geoengineering should be part of the climate crisis solution

The controversial technology of reflecting sunlight away from the planet could help blunt the worst impacts of climate change

Marine wildlife is starting to suffocate

Global warming and agricultural runoff have driven the loss of oxygen in oceans around the world, with looming ecological consequences.

What are fire whirls? | Things to Know

VIDEO: Researchers examine the behavior of these tornado-like fire columns

Rising to meet the tide

As the threat of coastal flooding grows, scientists are responding with an inundation of data. Faster and more accurate forecasts can save lives and property.

As climate changes, so does life in the planet’s soils

To understand what might be lost, ecologist Janet K. Jansson taps molecular methods to explore Earth’s underground microbes, from the permafrost to the grasslands

As the Arctic warms, it’s losing more than just ice

SLIDESHOW: Also at risk are the many hidden habitats built into the sea’s frozen wilds.

Quest to secure the world’s vanishing ice

Glaciologists dream of a cold-storage vault in Antarctica to preserve key samples of the paleoclimate

The tricky task of tallying carbon

To slow or stop global warming, the world agrees it must cut carbon dioxide emissions. But monitoring each nation’s output of greenhouse gases is not always straightforward.

The race against radon

Scientists are working to map out the risks of the permafrost thaw, which could expose millions of people to the invisible cancer-causing gas

Pursuing fusion power

Scientists have been chasing the dream of harnessing the reactions that power the Sun since the dawn of the atomic era. Interest, and investment, in the carbon-free energy source is heating up.

The quest to understand tornadoes

Scientists are still grappling with how and why violent twisters form. Will new technology and computing power help?

As glaciers retreat, new streams for salmon

Ecologist Sandy Milner has traveled to Alaska for decades to study the development of streams flowing from melting glaciers. He’s seen insects move in, alders and willows spring up, and spawning fish arrive in thousands.

Can desalination quench agriculture’s thirst?

Miles away from the ocean, projects are afoot to clean up salty groundwater and use it to grow crops. Some say it’s a costly pipe dream, others say it’s part of the future.

Hunting sky islands for genetic clues to climate resilience

OPINION: Isolated mountaintops are hotbeds of evolutionary adaptation and great places to study how climate change affects ecosystems

Geothermal power heats up

Long confined to regions with volcanic activity, geothermal promises to become a much more versatile energy source thanks to new technologies

Sustainable building effort reaches new heights with wooden skyscrapers

Wood engineered for strength and safety offers architects an alternative to carbon-intensive steel and concrete

The great green building makeover

Getting our homes and workplaces to be energy efficient has major benefits — but not when it is done one window at a time. Here’s why deep retrofits and biomaterials are key to more sustainable living.

Rethinking air conditioning amid climate change

ACs and refrigerators help keep people safe — but they also further warm the planet. Scientists are working on eco-friendlier solutions as global demand for cooling grows.

Losing the connection between the Andes and the Amazon: A price of peace in Colombia

The South American country, where the biodiversity of the Andes meets that of the Amazon, is losing the great natural wealth of some 1,500 square kilometers of forest each year, mainly in areas formerly under guerrilla control

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