Ozone Solution Worsens Warming, Acid Rain

Image of the largest Antarctic ozone hole ever recorded, 2006, courtesy NASA

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We already knew that the hydrochlorofluorocarbons (HCFCs) used to replace ozone-destroying chlorofluorocarbons (CFCs) are proving to be a super greenhouse gas—4,500 times more potent than carbon dioxide. Nevertheless, we’re still using them in everything from spray cans to refrigerators to air-conditioners.

Now a new paper in Journal of Physical Chemistry finds that HCFCs may also be increasing acid rain. Computer models show HCFCs break down in the upper atmosphere to form oxalic acid, one culprit in acid rain.

The researchers suggest the new computer model could help determine whether replacements for the replacements are as environmentally friendly as they appear before manufacturers spend billions of dollars marketing them.

The paper’s open access online.
 

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In this election year unlike any other—against a backdrop of a pandemic, an economic crisis, racial reckoning, and so much daily crazy—Mother Jones' journalism is driven by one simple question: Will America will move closer to, or further from, justice and equity in the years to come?

If you're able to, please join us in this mission with a donation today. Our reporting right now is focused on voting rights and election security, corruption, disinformation, racial and gender equity, and the climate crisis. We can’t do it without the support of readers like you, and we need to give it everything we've got between now and November. Thank you.

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