President Donald Trump is anticipated to announce the rollback of a significant climate policy that has been grounded in research showing that greenhouse gases negatively impact public health due to their role in accelerating climate change. This policy, which was established in 2009, was a cornerstone of American federal regulation aimed at reducing greenhouse gas emissions. Under the Obama administration, it was confirmed that six identified greenhouse gases were dangerous to public health and the welfare of everyday citizens because they hastened climate change.

White House Press Secretary Karoline Leavitt indicated that the most significant deregulation in American history will be announced by President Trump later today. This move signals a shift away from the prior administration's scientific consensus on climate change issues, which will likely provoke backlash from environmental and climate advocacy organizations. These groups are expected to challenge any proposed changes in court immediately following the announcement.

The announcement is set to be made alongside the Administrator of the Environmental Protection Agency (EPA), Lee Zeldin, further highlighting the collaborative effort to reshape the American approach to climate regulations. Such changes could have far-reaching implications not only for U.S. environmental policies but also for international climate agreements and the global response to climate change.