Not all Americans support the Paris Agreement. It's popular to be anti-Trump and feel guilty as an American. Many of us are pro-America and do not want Europe dictating what we do. We know Paris to be an unfair agreement in many ways. That doesn't mean we're against the environment. It just means we're not going to be guilted into paying India and China trillions in taxpayer money for an agreement with questionable returns (0.3F in 100 years).
Only those who believe in socialism, wealth distribution, the media, or American guilt, want this. Ask most Americans for details about the Paris Agreement, or how much it costs tax payers, and they won't know or care - since they're not paying into it anyway. Typical liberal attitude, is to pledge other people's money for causes only they believe in, then riot and cry about it when the general public disagrees with their sense of moral self-righteousness.
Like I said, those of you upset by America not being in the agreement - do your part. Please donate 5% of your NET WORTH to India or China to keep polluting, and pat yourself on the back. If you aren't willing to do this, you're a hypocrite. Please don't post anything anti-American unless you put your money where your mouth is. As for me, I don't agree with the Paris agreement I'm keeping my money in America.