"Countries have made impressive pledges to cut carbon pollution, but we have to ensure these promises become actions."

"Putting a tax on carbon could be an effective approach for curbing global warming pollution."

"Americans welcome carbon limits because they want to protect their families from harm."

"Mangroves, salt marshes and sea grass lock away carbon at up to five times the rate of tropical forests."

"Strong limits on carbon pollution will save Americans money, create jobs, improve our health, and help defuse climate change."

"The single most important thing we can do to protect our communities from climate change is to reduce dangerous carbon pollution."

"Americans are worried about pollution - oil trains running through their towns, fracking in their neighborhoods, coal dust in their air. They're worried about what the future will look like for their children if carbon pollution continues unchecked."

"Tar sands oil is the dirtiest fuel on Earth. Because producing it consumes so much energy, a gallon of tar sands crude generates 17 percent more carbon pollution than conventional crude oil."

"The U.S. limits mercury, arsenic, and soot from power plants. Yet, astonishingly, there are no national limits on how much carbon pollution these plants can dump into our atmosphere."

"The U.S. can become carbon neutral in our lifetimes. In the process, we will put millions of Americans to work, make our companies more competitive, and shield our communities from extreme weather. And we will honor our obligation to leave the world a better place for future generations."