I saw bits and pieces, was busy running back and forth through the house, but I gather, and have heard elsewhere, apparently there are some scientists who are still not convinced that human activity has much impact on global warming.
Well I've heard it before, have heard both sides of that debate and do not feel equipped to argue THAT, because I can't honestly say that I know.
But, it would seem to me, the debate is just the penultimate point of concern, the ultimate being that the wisest choice of all would be to behave in such ways that our actions today are NOT done knowingly, with any possibility whatsoever, of endangering the future of our own children/grandchildren, etc. Besides, it does no harm to behave as though we respect the earth and its beauty and ability to sustain so many life forms. I mean, well, no harm outside of hurting the pockets of some people that are already stuffed with so many billions I don't see how they could possibly tell any damage was being done
It reminds me of the old theological debate: How many angels can fit onto the head of a pin? Practical, immediate concerns get lost in all of that debate...which usually cannot be entirely proven, one way or another.
Just the vantage point from groundhog level--