A failure because China and India will not clean up their acts - if they even bother to agree to do so - or if the noble idealists even demand that they do.
Or because it is the height of folly to think puny man can control the sun or should wipe out co - the ‘oxygen’ of all plant life.
Yeah, I always wondered why there should be a push for a reduction in the elements that provide plants the ability to produce O2. Kind of self defeating. If the erf savers wish, they should volunteer to remove themselves from the equation. Otherwise, if you don’t want to put up, then shut up. Not very dedicated are they?