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Climate Change

Reviving a famously polluted California lake

Clear Lake, the state’s largest freshwater body of water, is fouled each year by algal blooms, one of many assaults endured by the battered ecosystem. Can a multipronged plan help it recover?

The fight against an invasive fish in California’s Clear Lake

VIDEO: Can removing carp help the lake’s native fish and keep toxic algal blooms in check?  

Leaning into Indigenous knowledge on climate change

Native peoples attuned to the natural world have long collected detailed environmental information. Now scientists are cataloging these observations and learning how they’re affecting Indigenous communities globally.

A lifetime of love for the charismatic narwhal

An independent scientist working with the Inuit has unraveled many mysteries of the one-tusked ‘unicorn of the sea’

Indigenous languages are founts of environmental knowledge

Peoples who live close to nature have a rich lore of plants, animals and landscapes embedded in their mother tongues — which may hold vital clues to protecting biodiversity

The most common wombat is also the least understood

Australia’s iconic marsupial has been viewed as a food source, pest, mascot and, now, a conservation concern. Scientists are breaking down myths — using genetics, robots and citizen science — and finding new ways to protect the animals.

Getting along with grizzly bears

In rural Alaskan and Canadian communities, reducing conflict between people and their wild neighbors means both species must change their behavior

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

Moving trees north to save the forests

As the world warms, trees in forests such as those in Minnesota will no longer be adapted to their local climates. That’s where assisted migration comes in.

The hornet has landed: Scientists combat new honeybee killer in US

An invasive yellow-legged wasp has been decimating beehives in Europe — and bedeviling Georgia since last summer. Researchers are working nest by nest to limit the threat while developing better eradication methods.

Inching toward a global treaty on plastic pollution

Delegates from 175 nations are working on an international agreement that would tackle the vast amounts of plastic waste in the environment. A marine scientist specializing in plastic pollution discusses the problem and her hopes for the proceedings.

Abandon the idea of ‘great green walls’

OPINION: The notion of planting miles of trees to hold back encroaching deserts is misguided and damaging; we should promote programs that secure livelihoods and respect dryland ecologies instead

Toward truly compostable plastic

Materials scientists are cooking up environmentally friendly polymers from natural sources like silk, plant fibers and whole algae. Economics and acceptance remain hurdles.

Why one deforestation solution has yet to stop massive tree loss

OPINION: Zero-deforestation supply-chain commitments aren’t protecting tropical forests as much as hoped. But they might, if the same standards were applied to domestic and export markets.

Shucking the past: Can oysters thrive again?

Dredging and pollution devastated the once-bountiful reefs. Careful science may help bring them back.

Return of the California condor

North America’s largest bird disappeared from the wild in the late 1980s. Reintroduction work in the United States and Mexico has brought this huge vulture back to the skies. This is the story of its comeback.

Beating back the Aedes aegypti mosquito

Scientists are taking a multipronged approach to tackle this dangerous carrier of dengue, yellow fever and other noxious viruses

Getting rid of bed bugs: Trickier than ever

The blood-sucking insects now show up in two varieties and are resistant to many pesticides. New eradication strategies include fungal spores and nasty human odors.

Mining the deep ocean

Renewable technologies need a multitude of critical minerals. The seabed could supply these riches. But at what cost?

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