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EPA Administrator Lee Zeldin Delivers Keynote at Heartland Institute Climate Conference

Lee Zeldin, administrator of the US Environmental Protection Agency, spoke at a conference hosted by the Heartland Institute in Washington DC on Wednesday. The Heartland Institute has rejected the scientific consensus on human-caused climate change. Zeldin addressed EPA policy changes and criticized prior climate science approaches during the event.

The Guardian
1 source·Apr 8, 3:58 PM(27 days ago)·2m read
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EPA Administrator Lee Zeldin Delivers Keynote at Heartland Institute Climate ConferenceSubstrate placeholder — needs review · Wikimedia Commons (CC BY-SA 3.0)
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Lee Zeldin, the administrator of the US Environmental Protection Agency (EPA), delivered the keynote speech at a conference hosted by the Heartland Institute in Washington DC on Wednesday morning. The Heartland Institute is a think tank that has promoted skepticism toward the scientific consensus on climate change.

In 2012, the organization displayed billboard posters comparing climate advocates to the Unabomber.

During his speech, Zeldin stated that the EPA would no longer rely on what he described as flawed assumptions in climate science. He referred to established climate science and emphasized using accurate, present-day facts. Zeldin also criticized media descriptions of his positions as controversial for not aligning with statements from figures including John Kerry, Al Gore, and Representative Alexandria Ocasio-Cortez.

" — Lee Zeldin (The Guardian) Zeldin remarked that it is controversial to reject predictions of imminent global catastrophe. He described previous administrations' responses to scientists' warnings on greenhouse gas emissions as overlooking the role of carbon dioxide in supporting planetary life.

Zeldin accused past policymakers and scientists of forming a group that selected specific models and methodologies while discouraging challenges to them.

Heartland Institute The Heartland Institute has received funding from oil companies including Shell and ExxonMobil, as well as from the Mercer family, Republican donors.

The organization contributed to Project 2025, a policy blueprint for a potential second Trump administration. The Heartland Institute has described climate science as fake news since the early 2000s. Scientific consensus holds that carbon dioxide and other greenhouse gases are causing global warming, leading to higher temperatures and more frequent extreme weather events.

Experts recommend phasing out fossil fuels to maintain a livable climate. The conference took place amid ongoing debates over US environmental policies.

Under Zeldin, the EPA has exempted certain polluting facilities from regulations, closed climate and environmental research offices, and reduced its workforce.

The agency has also reversed dozens of environmental and climate protections. Last month, more than 160 environmental and public health organizations called for Zeldin's resignation, stating that he has deviated from the agency's mission. Zeldin addressed the reversal of the endangerment finding, a legal basis for most US climate regulations.

He noted that these actions align with his confirmation hearing pledges and the 2024 election outcome. Ahead of the speech, the Environmental Defense Fund Action placed posters near the Hotel Washington critiquing Zeldin's participation. Joanna Slaney, vice president of the Environmental Defense Fund, said the posters highlighted concerns about climate denial.

The event underscores tensions between current EPA policies and established climate science. Future EPA decisions may continue to influence national environmental regulations.

Key Facts

Lee Zeldin
EPA administrator since 2025
Heartland Institute
Received funding from Shell and ExxonMobil
Endangerment finding
Legal basis reversed by EPA under Zeldin
160 organizations
Called for Zeldin resignation last month
Project 2025
Policy blueprint with Heartland contribution

Story Timeline

4 events
  1. Wednesday morning

    Lee Zeldin delivered keynote speech at Heartland Institute conference in Washington DC.

    1 sourceThe Guardian
  2. Last month

    Over 160 organizations called for Zeldin's resignation over EPA mission deviation.

    1 sourceThe Guardian
  3. Since early 2025

    EPA under Zeldin exempted facilities from regulations and rolled back protections.

    1 sourceThe Guardian
  4. 2012

    Heartland Institute displayed billboards comparing climate advocates to Unabomber.

    1 sourceThe Guardian

Potential Impact

  1. 01

    EPA rollbacks may increase emissions from exempted facilities.

  2. 02

    Reversal of endangerment finding may limit future climate rules.

  3. 03

    Reduced EPA workforce could slow environmental enforcement.

  4. 04

    Public health groups' calls may influence congressional oversight.

Transparency Panel

Sources cross-referenced1
Confidence score70%
Synthesized bySubstrate AI
Word count435 words
PublishedApr 8, 2026, 3:58 PM
Bias signals removed5 across 2 outlets
Signal Breakdown
Loaded 2Amplifying 2Framing 1

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