EPA Chief Lee Zeldin Keynotes Climate Denial Conference

Apr 12, 2026, 2:36 AM
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EPA Administrator Lee Zeldin made headlines after delivering a keynote speech at the Heartland Institute's 16th International Conference on Climate Change in Washington, DC on Wednesday. The Heartland Institute is known for its climate denial stance, having previously compared climate advocates to terrorists like the Unabomber on its promotional materials.
In his address, Zeldin dismissed concerns about climate change, stating, "No longer are we going to rely on bad, flawed assumptions instead of accurate, present-day facts, without apology or regret." This comment was aimed at established climate science, which he labeled as "doom and gloom" narratives propagated by figures like John Kerry and Alexandria Ocasio-Cortez.
Zeldin's participation at the conference has drawn sharp criticism from environmental groups. Joanna Slaney from the Environmental Defense Fund stated, "Lee Zeldin is executing on the playbook of denial written by the Heartland Institute," highlighting the disconnect between the EPA's mission and Zeldin's remarks. More than 160 environmental organizations have called for Zeldin's resignation, arguing that he has betrayed the core mission of the EPA, which is to protect public health and the environment.
During his speech, Zeldin mocked the media's characterization of him as "controversial" for not adhering to what he called "blind obedience" to climate science. He derided previous administrations for taking climate scientists' warnings seriously and emphasized the supposed benefits of carbon dioxide, claiming it is "not a pollutant and never was". This rhetoric aligns with the Heartland Institute's long-standing opposition to the scientific consensus on climate change, which states that greenhouse gases are a significant factor in global warming and extreme weather events.
Zeldin's announcement of the repeal of the EPA's "endangerment finding"—a key policy for regulating greenhouse gas emissions—was met with cheers from the audience. This policy had previously established that carbon dioxide and other greenhouse gases endanger public health and welfare, a determination that Zeldin's administration has now nullified. Critics argue that this repeal disregards the health impacts associated with climate change, such as increased asthma and extreme weather-related disasters.
The Heartland Institute, which hosted the conference, has been criticized for its funding sources, which include major oil companies like ExxonMobil and Shell, as well as Republican mega-donors like the Mercers. The think tank has consistently propagated skepticism regarding climate science, branding it as "fake news" and launching campaigns that undermine the credibility of climate scientists.
Zeldin’s remarks at the conference also indicated his desire to align the EPA more closely with the Trump administration's deregulatory agenda. He stated, "What we are doing in the last 14 months is no surprise. It is what I pledged during my confirmation hearing, and it is what the American public voted for when they put Donald J Trump back in office". This aligns with the broader strategy of the Trump administration to roll back environmental regulations put in place by previous administrations.
Critics of Zeldin’s speech argue that his participation at such a conference undermines the integrity of the EPA, which is supposed to be a science-based agency tasked with protecting the environment and public health. William K. Reilly, a former EPA administrator, remarked that Zeldin's choice to address a group known for its climate denial is troubling and sends a detrimental message about the agency's commitment to scientific integrity.
As the debate over climate policy continues, Zeldin's keynote at the Heartland Institute serves as a flashpoint, illustrating the stark divide in US climate policy and the ongoing battle between advocates for climate action and those promoting climate skepticism. With ongoing pressure from environmental advocates and the scientific community, the implications of Zeldin's policies and rhetoric will likely resonate throughout the upcoming years as climate change continues to impact global health and stability.

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