Climate Change

Climate Change

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Underwater photograph of a green sea turtle.

The case for ocean optimism

With the health of the ocean under threat, a rallying cry for marine conservation goes global. Here are some of the good-news stories.

Half-submerged photo of a mangrove forest, showing root systems below water level and branches above.

Food & Environment

Many mangrove restorations fail. Is there a better way?

These carbon-hoarding, coastline-protecting forests are sponges for greenhouse gases. Doing plantings right and involving local communities are key to saving them.

Collage shows people's hands using devices such as a phone or laptop in a virtual meeting, with an illustration of the planet superimposed on top.

Food & Environment

Let’s keep meetings virtual after Covid

OPINION: We don’t want to go back to living on planes and out of suitcases. Virtual meetings are cheaper, more accessible and better for the planet.

Aerial photograph of a field with corn growing in it.

Food & Environment

Fighting climate change means taking laughing gas seriously

Agriculture researchers seek ways to reduce nitrous oxide’s impact on warming

Photograph of two people on a pristine rocky shore in Costa Rica.

Society

A healthy environment as a human right

UN recognition would strengthen legal arguments for preserving nature

Empty shelves in a UK grocery store during the early weeks of the Covid-19 lockdown in 2020.

Food & Environment

Growing a more resilient global food system

Covid-19 has been a stress test for the world’s food supply chains — and a preview of looming threats. That’s making efforts to improve the journey from farm to fork more urgent than ever.

Conceptual illustration of the food system. There is a circle with icons for different aspects, including a cloud, a leaf growing in someone's hand, a truck, a tractor, a store, and a plate with food.

Food & Environment

Baking resilience into the food system

VIDEO: Watch our conversation about the pandemic’s effect on global food supplies and distribution, and how we might prevent future crises arising from climate change

Photograph of a man seen from above. He is standing on grass and has his arm stretched out toward a wall of solar panels.

Technology

The dazzling history of solar power

PODCAST: Once fringe and futuristic, this renewable energy shines brightly today as a cheap and efficient source of energy. Still, it remains controversial — for much different reasons. (Season 1/Episode 3)

Photograph of a wide flooded parking lot with more than a dozen marooned, partially submerged cars. Dark storm clouds loom overhead.

Physical World

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.

Food & Environment

Rethinking recycling

VIDEO: Diverting recoverable materials helps keep trash from overwhelming landfills, but the industry still faces many challenges. Consumer education, innovative technologies and turning wastes to energy can help manage the rubbish problem.

Food & Environment

Recycling meets reality

Modern industry has made great strides in turning trash into tomorrow’s new products, but the process is still a long way from perfect. New technologies can help. Plus, updates on chemical recycling, design for recycling and dirty recycling.

Photo taken by the crew of the International Space Station of the sun peeking over the edge of the planet showing a sky that darkens as you move away from Earth.

Food & Environment

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

Photo shows the beginning of an ice core drilling project on Mont Blanc in France in August 2016.

Physical World

Quest to secure the world’s vanishing ice

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

Living World

Pollution evolution: The little fish that could

Where other species succumbed, the killifish survived contaminated habitats. It’s a finding that could help researchers understand environmental risk factors for humans.

An image of the globe oriented to show Antarctica and the Southern Ocean, with moving green lines showing the movement of wind at Earth’s surface.

Physical World

Out of Antarctica, churnings of climate change

The interplay of carbon dioxide, winds and Southern Ocean waters could be reaching an environmental tipping point

Photo shows solar panels piled up in a remote area of South Africa.

Food & Environment

Why green energy finally makes economic sense

Solar and wind generators have suddenly become just as cheap as other ways to produce electric power

Satellite photo of Earth shows Antarctica surrounded by hazy white and brown dust trails hovering above the Southern Ocean.

Physical World

The iron ocean

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

Photo shows a large power plant with visible emissions in Europe.

Food & Environment

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.

Physical World

What are fire whirls? | Things to Know

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

An illustration shows marine animals intermingled with DNA helices. A humpback whale, a white shark and diatoms are in the foreground, along with a device that collects seawater. In the background, a squid, a turtle and a whale shark swim with a school of fish.

Living World

A world in a bottle of water

Revolutionary techniques using traces of environmental DNA are analyzing entire ecosystems “from microbes to whales”

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