Congress moves to hide climate costs from pollution rules

What it does

This bill prohibits federal agencies from using the 'social cost of carbon' and related greenhouse-gas damage estimates in regulatory decisions, cost-benefit analyses, or guidance documents. It requires agencies to report on past use of these estimates since 2009 and mandates that environmental considerations in permitting and regulation be limited to those explicitly required by statute, using only 'robust' (non-ideologically motivated) methodologies aligned with a 2003 OMB circular.

Why we flagged it

The bill's stated purpose is 'transparency and honesty,' but its functional effect is to remove quantified environmental-damage estimates from regulatory analysis—making it harder to justify pollution controls and easier to approve fossil-fuel projects. The mechanism is deregulatory, not transparency-enhancing.

What the text implies

• Agencies will no longer be required to monetize climate and air-quality harms in cost-benefit analyses, shifting the burden of proof: projects that harm public health become easier to approve because the damage is no longer quantified in official decision-making.
• The bill's requirement to use 'robust' methodologies and align with a 2003 OMB circular (predating modern climate science) effectively locks agencies into outdated discount rates and damage estimates, preventing them from incorporating newer scientific consensus.
• By limiting environmental considerations to those 'explicitly required under an Act of Congress,' the bill narrows the scope of EPA and other agencies' existing statutory mandates (Clean Air Act, Clean Water Act, National Environmental Policy Act), potentially invalidating decades of regulatory practice.
• The 120-day reporting requirement creates a record of past regulatory decisions using social-cost-of-carbon estimates, which may be used to challenge or overturn those rules in court or through future legislative action.

Who it affects

Ordinary citizens bear the health and environmental costs of greenhouse-gas emissions (air pollution, climate impacts, extreme weather). By removing the quantified damage estimates from regulatory decisions, the bill makes it easier for agencies to approve fossil-fuel projects and weaker pollution rules without accounting for public harm. The beneficiaries are fossil-fuel and energy companies; the costs fall on the public.

Who stands to gain

• fossil fuel producers and refiners
• coal-fired power generators
• natural gas utilities
• oil and gas exploration companies
• energy-intensive manufacturers

Named in the bill

EPA (Environmental Protection Agency), OMB (Office of Management and Budget), Interagency Working Group on Social Cost of Carbon, Executive Order 12866, Executive Order 13563, Executive Order 13990, Senate Committee on Environment and Public Works, Senate Committee on Energy and Natural Resources, House Committee on Energy and Commerce, House Committee on Natural Resources, Clean Air Act, Clean Water Act — and 1 more

Where it stands

• May 1, 2025 — Introduced · Congress.gov: “Introduced in Senate”
• May 1, 2025 — Referred to Senate Committee on Homeland Security and Governmental Affairs · Congress.gov: “Read twice and referred to the Committee on Homeland Security and Governmental Affairs”

Dates and quoted wording are Congress.gov's action record; the timeline shows status changes, not every procedural step.