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E.P.A. to Announce Sharp Limits on Highly effective Greenhouse Gases

WASHINGTON — The Environmental Safety Company on Monday will take its first vital step underneath President Biden to curb local weather change, an company spokesman confirmed, transferring to sharply scale back chemical compounds utilized in refrigeration and air-conditioning which are hundreds of occasions stronger than carbon dioxide at warming the planet.

The proposed regulation goals to cut back the manufacturing and importation of hydrofluorocarbons, or HFCs, in the US by 85 p.c over the following 15 years. It’s a aim shared by environmental teams and the enterprise neighborhood, which collectively championed bipartisan laws handed by Congress in December to sort out the pollutant.

The transfer is essential as a result of it marks the primary time the federal authorities will set nationwide limits on HFCs, which have been used to interchange ozone hole-depleting chlorofluorocarbons within the Eighties however have turned out to be a big driver of worldwide warming. Greater than a dozen states have both banned HFCs or are formulating some restrictions.

The pace with which the E.P.A. is proposing the regulation underscores the extent of consideration the Biden administration is giving to local weather change, stated Francis Dietz, vp for public affairs on the Air-Conditioning, Heating and Refrigeration Institute, a commerce group.

“They’re actually transferring swiftly,” he stated. “It says they’re very severe about this.”

In speaking the beneficial properties it believes might be realized by tackling local weather change, the E.P.A. estimated that the HFC rule will lead to $283.9 billion in well being and environmental advantages by the center of the century.

The trouble is a part of President Biden’s formidable technique to chop the nation’s greenhouse fuel emissions roughly in half by 2030. It additionally places the US according to an worldwide aim to cut back HFCs, which the Biden administration has stated it is going to honor as a part of its effort to revive American management in tackling local weather change.

Like methane, HFCs have short-term warming results way more highly effective than carbon dioxide, however they don’t keep within the ambiance as lengthy. Scientists have estimated that lowering most of these greenhouse gases can have a palpable impression, slowing the tempo of worldwide warming by 0.6 levels Celsius by midcentury.

“That is extremely vital,” stated Kristen N. Taddonio, a senior local weather and vitality adviser for the Institute for Governance & Sustainable Growth, an environmental nonprofit group. “By taking quick motion on these short-lived local weather pollution, of which HFCs are essentially the most potent, we will purchase ourselves a while and truly assist keep away from local weather tipping factors.”

As a part of a sweeping coronavirus reduction invoice, Congress final yr permitted language directing the E.P.A. to curb HFCs. Senator Chuck Schumer of New York, who on the time was the Democratic minority chief, known as it “the one greatest victory within the battle in opposition to local weather change to go this physique in a decade.”

The E.P.A. estimates that from 2022 to 2050, the rule will remove the equal of 4.7 billion metric tons of carbon dioxide — or about three years’ value of emissions from America’s energy sector.

The company stated it had carried out an “environmental justice evaluation” that discovered cuts to planet-warming emissions “would profit populations which may be particularly susceptible to damages related to local weather change, such because the very younger, aged, poor, disabled and Indigenous populations.”

Echoing an financial theme that Mr. Biden has repeatedly promoted when discussing his local weather plans, the E.P.A. stated that American producers have been on the forefront of creating HFC alternate options and that the brand new laws would place these firms to succeed at dwelling and overseas.

Mr. Dietz stated he hoped that federal regulation meant firms wouldn’t face a patchwork of HFC prohibitions in numerous states.

“It is a huge sign to the states that the administration takes this critically and the federal authorities takes this critically,” he stated.

Within the final days of the Obama administration, 197 nations together with the US signed an accord in Kigali, Rwanda, agreeing to section out HFCs. President Donald J. Trump by no means introduced the settlement to the Senate for ratification. Mr. Biden, who has rejoined the US to the Paris Settlement on local weather change, has pledged to ship the Kigali modification to the Senate for approval.

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