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Climate

Thirty years after Montreal pact, solving the ozone problem remains elusive.

ANALYSIS

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Cindy Cornett Seigle/flickr
Toxics

Why did we use leaded petrol for so long?

Leaded petrol was safe. Its inventor was sure of it.

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Opinion

We saved the whale. The same vision can save the planet.

“Hope is essential – despair is just another form of denial,” Al Gore said last week, in an interview to promote the sequel to his 2006 climate change documentary An Inconvenient Truth. As well as the very bad news of Donald Trump’s science-denying presidency, An Inconvenient Sequel: Truth to Power, which opens in the UK today, brings good news: the plummeting cost of renewable electricity and the 2015 Paris climate agreement.

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Toxics

Thirty years after the Montreal Protocol, solving the ozone problem remains elusive.

Despite a ban on chemicals like chlorofluorocarbons, the ozone hole over Antarctica remains nearly as large as it did when the Montreal Protocol was signed in 1987. Scientists now warn of new threats to the ozone layer, including widespread use of ozone-eating chemicals not covered by the treaty.

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Climate

Court ruling on HFCs deals another blow to Paris climate goals.

A U.S. court ruled the EPA lacked authority to regulate the powerful greenhouse gases, used for cooling and refrigeration. Industry had supported the regulations.

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From our Newsroom

Heroes of another kind

Covid-19 has made heroes out of millions of healthcare workers. Here are a few reporters that have earned our thanks, too.

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