Not at all. Back when ozone depletion was being discussed, so was CO2. Thatcher was as keen on CO2 action as CFC action. Back then I was very optimistic. Jame

Not at all. Back when ozone depletion was being discussed, so was CO2. Thatcher was as keen on CO2 action as CFC action. Back then I was very optimistic. James Burke, a famous old UK TV science personality known for Tomorrow's World, Connections, and The Day the Universe Changed, made a programme in 1989 called "After the Warming", a view from 2050 looking back. Find it on YT, forgive the late 80s CGI, and be surprised, and a little depressed. He gets much right, and a little of the then new science wrong, only it turns out he was pretty optimistic too. Decades of inaction and international treaties (Rio-1992!!, Kyoto, Paris) that barely scratch the surface, or require no commitment from developing nations. Then all the disingenuous attempts at briefing against fact and science, or claiming we can't afford to, or we'll adapt, squelched all that optimism. Now I think IPCC will turn out to be at the wildly optimistic end of the scale, as their projections presume we will eventually get off our ass and try. Seems we have to hit rock bottom, and too late, but right under our noses first. I still have a feint hope the world will prove me wrong...