What are %26quot;gas emissions%26quot;? I%26#039;m working on a project,and I wanna make sure this sentence makes sense:

%26quot;Chevy is working to offer gas-friendly and gas-free vehicle models to help protect our planet from harmful gas emissions.%26quot;


Does that make sense? If not, what word(s) should replace %26quot;gas emissions%26quot; to make it make sense? http://www.environmentengineering.blogsp...