Good enough for the demographic crisis, not good enough for the climate one

Mark Steyn:

When I write about the lack of children throughout the developed world, "progressives" often reply that there's nothing to worry about and our natural ingenuity will ensure that something will turn up in time to save us: more automation, incredibly lifelike robots, clone workers, etc. Yet they're very reluctant to apply that optimism to the airier speculations on "the climate".