After months of telegraphing the movethe Trump administration has now officially repealed the EPA in 2009″risk finding,” which found that greenhouse gases such as carbon dioxide and methane are a threat to human health and well-being.

The finding currently supports the agency’s regulation of greenhouse gases under the Clean Air Act. Currently, the new rule applies only to car and truck tailpipe emissions, but it is expected to be the first of many similar changes to federal air pollution regulations.

Before fully withdrawing the hazard finding, however, the EPA must go through a lengthy process. The original discovery took two years to establish.

The move by Lee Zeldin, the administrator of the EPA, will slow the reduction of emissions by about 10%, ACCORDING in Axios. That is a significant amount, but not enough to reverse the trend, because cheap renewables has dominated new power generation capacity in recent years.

“This action will only lead to more pollution, and that will lead to higher costs and real harm for American families,” Fred Krupp, president of the Environmental Defense Fund, told TechCrunch in a statement.

Unrelenting climate change is expected to increase the death rate of about 2% in the US, and it can reduce global GDP by 17% by 2050, or about $38 trillion.