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Home SCIENCE US officially commits to global pact to phase out planet-warming refrigerants

US officially commits to global pact to phase out planet-warming refrigerants

Air conditioning units sit in the windows of an apartment building on July 20, 2022 in Washington, DC. | Photo by Anna Moneymaker/Getty Images

The Senate at last voted to ratify the historic Kigali Amendment to the Montreal Protocol, which commits the US to rapidly reduce the use of a certain class of refrigerants that also happen to be a super greenhouse gas.

Specifically, the Kigali Amendment urges developed countries to reduce the use of hydrofluorocarbons (HFCs), which are found in air conditioning, refrigerators and fire extinguishers, by 85 percent by 2036. The plan was drafted in 2016 by delegates from countries that sought to update the Montreal Protocol, which sought to protect and repair the ozone layer in the 1980s. The Montreal Protocol focused on reducing the use of ozone-depleting substances called chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons…

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