A coalition backed a million comments from Americans is urging President Obama to support new standards to curb industrial carbon pollution from power plants.

In a letter sent to the White House last week, the broad-based coalition said there was a “groundswell of support” for the new EPA carbon pollution standard, citing the million+ comments collected by its member groups.

“With over a month still remaining in the public comment period, this is already the largest number of public comments the EPA has ever received on any issue, and we anticipate many more comments to come in the weeks ahead,” according to a statement by the group.

“Implementing this standard is critical to protect public health by decreasing the industrial carbon pollution that contributes to global warming. Global warming increases the formation of smog that triggers asthma attacks and permanently damages and reduces lung function. Children, senior citizens and others with respiratory ailments are particularly vulnerable to the negative effects of smog. In addition to the health impacts, carbon pollution and global warming will increase extreme weather related occurrences like floods, intense storms, drought, and heat waves."

The coalition includes a range of labor, environmental and advocacy groups such as AFL-CIO, AFSCME, Steelworkers, SEIU, UAW, and the Teamsters Center for American Progress Action Fund, Earthjustice, Environment America, Environmental Defense Fund, Greenpeace, League of Conservation Voters, League of Women Voters of the United States, National Wildlife Foundation, Natural Resources Defense Council, Sierra Club, Union of Concerned Scientists, US Climate Action Network. State and local organizations representing communities most at risk of a poison gas disaster, such as Texas Environmental Justice Advocacy Services, Advocates for Environmental Human Rights, and WE ACT for Environmental Justice, are also members.