Denialists, skeptics, warners and calamatists

*I always wanted to be in a fifth camp which was aesthetically opposed to polluting the sky for design reasons. I mean, why exactly did we want the blue sky we inherited to be brown for our grandchildren? 'Cause it was cheap? 'Cause we knew no better? That was it? Those were reasons enough for our misbehavior?

*Very wise and foresightful things by Stewart Brand here. Except for one issue. Real calamity, as opposed to futurist calamities and scifi calamities. If we all figure out that w...