During his 2015 State of the Union address, President Obama said he is "determined to make sure American leadership drives international action" on climate change policy.

He followed up late last month with a pledge to cut emissions between 26% and 28% by 2025. If the US government adopts a policy to curb carbon pollution from domestic aviation, it would enhance its ability to meet—and even exceed—that promise.

The Environmental Protection Agency (EPA) is currently evaluating the emissions standard—if any—to set for the airline industry within the US.

We must push the aviation industry to develop and fly less-polluting aircraft. Setting strong standards for carbon dioxide emissions will do just that.

Tell EPA Administrator Gina McCarthy that you want her to propose a strong carbon dioxide emissions standard for airplanes that operate in the US.