I agree that the "global warming lemmings" need to change their strategy.
Most Americans have not been deceived by their pseudo-scientific arguments and most Americans have not been converted by their "holier-than-thou" moralistic Jeremiads.
So I think it's time for those lemmings to try something else: "leading by example"!
For example, if, at the end of this "Ethics" conference, all of the participants commit suicide together in a well-orchestrated photo-op, then we would finally KNOW that they really WERE "serious" about their cause.
This bloody, but "ethical", rejection of what they see as an un-worthy world would (no doubt) inspire a sense of "guilt" in some, who might (as a result) downsize from their SUVs to Vespas -- thereby SAVING our world!
And there is no downside here, since these "ethicists" would, through their self-sacrifice, entirely CEASE their own participation in the conversion of carbohydrates to CO2 that is soooo typical of living organisms.
Let's take care though to ensure that the bodies of these noble "ethicists" are NOT cremated.
Fat chance of that happening!
Remember when Barbara Striesand issued a statement urging everyone to stop using clothes dryers and instead hang their wash outside on a clothes line to dry?
And then some guy flew an airplane low over her Malibu estate and took pictures showing that she had no clothes lines. Her response was that she meant it for average people, she didn't intend it to include herself.