Today the Sierra Club joined a coalition of groups in delivering to the Environmental Protection Agency (EPA) more than 500,000 public comments in support of EPA's carbon pollution safeguards.

These half-a-million comments demonstrate the broad national support for these critical protections, which were announced in late March. Carbon pollution is the main contributor to climate disruption and is linked to life-threatening air pollution like smog - which triggers asthma attacks - making it a serious hazard to Americans' health and future.

Once finalized, these protections will ensure that new power plants will meet public health standards and protect Americans from dangerous pollution.

EPA Deputy Administrator Bob Perciasepe (pictured at the left) thanked the coalition for the comments, saying they help EPA accomplish its mission.

We were also proud that the Sierra Club community contributed the most comments to the bunch - with more than 154,000 coming from our members, supporters, and beyond. Congratulations, everyone!

Photos by Trey Pollard