Montreal Protocol prevented carbon sink losses: study

In addition to protecting the ozone, the Montreal Protocol also prevented a significant loss of sequestered carbon.

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Toxics

Make air conditioners suck less

The Biden EPA is right to cut hydrofluorocarbon emissions. But sustainable air conditioning requires more than just better window units.
www.nytimes.com
Justice

EPA to sharply limit powerful greenhouse gases

The Biden administration is moving quickly to limit hydrofluorocarbons, the Earth-warming chemicals used in air-conditioning and refrigeration.
www.washingtonpost.com
Toxics

Mario Molina, Nobel laureate who revealed threat to ozone layer, dies at 77

His work helped show the danger of CFCs, common chemicals found in refrigerants and hair sprays whose use was later greatly curtailed by a landmark international accord.
Toxics

The global victory over ozone-killing chemicals is coming undone

Mysterious emissions have been slowing the atmosphere's healing. Scientists think they've finally discovered the source.

cosmosmagazine.com
Toxics

Refrigeration chemicals helped drive Arctic warming

Chemicals used in refrigerators and freezers may have been responsible for half of Arctic climate change in the past 50 to 60 years, scientists say.

www.nytimes.com
Toxics

Banned ozone-harming gas, once on the rise, declines again

Emissions of CFC-11, which had risen unexpectedly since 2012, appear to have fallen off in the last two years.
www.dw.com
Climate

Healing the ozone layer: A ray of hope for planet Earth?

After a decades-long ban on harmful ozone-depleting chemicals, the ozone layer is finally healing. Could this be a model for tackling other environmental problems like climate change?
www.nytimes.com
Climate

More evidence points to China as source of ozone-depleting gas

Delegates from nearly 200 countries are gathering in Ecuador to discuss efforts to repair the ozone layer, and the return of a banned chemical will be on the agenda.
www.nytimes.com
Toxics

In a high-stakes environmental whodunit, many clues point to China

Scientists say new production of a banned industrial chemical is damaging the ozone layer. Investigations by The Times and an independent environmental group lead to factories in China.
www.businessgreen.com
Toxics

Mysterious emissions of banned greenhouse gas traced to Chinese factories

Illegal production of CFC-11 in China has a climate impact equivalent to 16-20 coal power plants, the Environmental Investigation Agency estimates.

www.nytimes.com
Climate

Banned ozone-harming gas creeps back, suggesting a mystery source

CFC-11, once commonly used as a refrigerant, has been outlawed for nearly a decade. Scientists suspect it is being produced again, likely in East Asia.
Climate

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