Solving the growing plastics waste puzzle

When polymers prove resistant to recycling, new chemical techniques can do the job of breaking them down for reuse

M. Mitchell Waldrop • knowable
Oct. 1, 2020 ~7 min

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.

M. Mitchell Waldrop • knowable
Oct. 1, 2020 ~27 min

The accidental tree killers

Epidemics of forest-felling diseases are on the rise thanks to globetrotting pathogens that slip through even the best defenses. To prevent further losses, scientists are turning to high-tech surveillance and detection, even canine noses.

Stephanie Pain • knowable
Sept. 21, 2020 ~23 min

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

Betsy Mason • knowable
Sept. 16, 2020 ~15 min

Quest to secure the world’s vanishing ice

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

David Adam • knowable
May 28, 2020 ~14 min

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.

Wudan Yan • knowable
April 23, 2020 ~13 min

The tides they are a-changin’ — and it’s not just from climate change

Dredging rivers, filling in wetlands and other human acts of engineering have shifted coastal ebbs and flows worldwide. Add rising sea levels, and the threat of storm surges and floods will worsen in some places.

Alexandra Witze • knowable
April 22, 2020 ~10 min

The soil solution

Policymakers, entrepreneurs and farmers are increasingly looking to soils in their fight to slow climate change

Laura Poppick • knowable
March 11, 2020 ~13 min

Fighting fire with fire ... and fauna

Climate change is aggravating the seasonal burns that Australia has always known. They won’t be snuffed out, but new ecological strategies may help.

Tim Vernimmen • knowable
March 5, 2020 ~14 min

How humans shift fish evolution | Things to Know

VIDEO: By targeting larger individuals, intense fishing may lead to a fishery dominated by the small

Tien Nguyen • knowable
Feb. 27, 2020 ~1 min

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