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米国環境保護庁、火力発電所の二酸化炭素排出規制を撤廃する見通し

環境保護庁は2026年9月13日、石炭およびガス火力発電所に対する二酸化炭素排出規制を早ければ月曜日にも正式に撤廃する見通しであることが明らかになりました。トランプ政権によるこの動きは、オバマ政権およびバイデン政権下での主要な気候変動政策の大部分を事実上消し去るものとなります。 The U.S.

米国環境保護庁、火力発電所の二酸化炭素排出規制を撤廃する見通し

環境保護庁は2026年9月13日、石炭およびガス火力発電所に対する二酸化炭素排出規制を早ければ月曜日にも正式に撤廃する見通しであることが明らかになりました。トランプ政権によるこの動きは、オバマ政権およびバイデン政権下での主要な気候変動政策の大部分を事実上消し去るものとなります

石炭およびガス火力発電所の排出制限解除へ

The U.S. Environmental Protection Agency (EPA) is poised to formally rescind carbon pollution standards for fossil fuel-fired power plants as early as Monday, according to sources familiar with the matter. The announcement is expected to occur during a Group of 20 (G20) energy ministers’ meeting in Houston, Texas, as reported by Bloomberg. This move follows the Trump administration’s earlier rescission of similar climate standards for vehicles and the 2009 endangerment finding, a landmark ruling that established greenhouse gases as a threat to public health. The EPA’s decision would mark the completion of the administration’s effort to dismantle key climate policies from the Obama and Biden administrations.

歴代政権の主要な気候政策の完全な消去

The power sector is the second-largest source of carbon dioxide and other greenhouse gas emissions in the United States, according to The New York Times. If the U.S. power sector were its own country, it would rank as the fifth-largest climate polluter globally, following China, the entire United States, India, and Russia. EPA Administrator Lee Zeldin, who previously spoke alongside President Trump in the Oval Office, is expected to announce the policy shift during the G20 meeting. Sources described the proposal as part of a broader effort to roll back climate regulations, with environmentalists and energy experts criticizing the move as a significant setback for global climate goals.

予想される法的闘争と今後の展望

The EPA’s decision to eliminate power plant emissions standards could prevent future administrations from regulating greenhouse gas emissions from the sector, according to The New York Times. The agency’s previous rescission of the 2009 endangerment finding, which linked greenhouse gases to health risks, and vehicle emissions rules earlier this year, set the stage for this latest policy shift. The New York Timesは、この動きによってジョセフ・R・バイデン・Jr.大統領およびバラク・オバマ大統領による最も影響力のある気候変動政策を消し去るという政権の取り組みが完了することになると指摘しました。

Representatives for the EPA did not immediately respond to requests for comment late Sunday evening, as reported by The New York Times. Environmental groups have raised concerns about the potential consequences of the policy change, emphasizing the role of power plants in contributing to climate change. The power sector’s emissions, which accumulate in the atmosphere and trap heat, are linked to extreme weather events and rising global temperatures.

背景と政策の歴史的文脈

The EPA’s rescission of power plant emissions standards aligns with this strategy, following similar actions against vehicle emissions rules and the 2009 endangerment finding. These moves have been criticized by climate advocates as undermining efforts to combat global warming. The 2009 endangerment finding, which established the legal basis for regulating greenhouse gases, was a cornerstone of federal climate policy under the Obama administration.

The New York Times reported that the policy change is expected to face legal challenges, with opponents arguing that it would harm public health and the environment. The EPA’s decision to eliminate the standards could also limit the ability of future administrations to enforce climate regulations, as noted in the article. The G20 meeting in Houston, where the announcement is scheduled, underscores the international dimension of the issue, as energy ministers from major economies gather to discuss global energy policies.

影響と反応

Environmentalists and energy experts have expressed strong opposition to the proposed policy change. The New York Times cited concerns that the move would exacerbate climate change and hinder progress toward international climate goals. The power sector’s role as a major emitter of greenhouse gases has been highlighted as a critical factor in the debate.

If EPA won’t regulate climate pollution, what’s the backup plan — and who pays the price?

The EPA’s announcement, expected to be made public on Monday, will mark a significant moment in the ongoing political and legal battles over climate policy.

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