Combat Global Warming. Piss into the wind.
Heh. Does anyone make that on a bumper sticker?
Do not combat “Global Warming” - embrace it for the blessing that it is. A TRAILING indicator of small changes in the average temperature of our planet, is release of greater amounts of carbon dioxide into the atmosphere, both from terrestrial sources (more rapid decomposition of organic materials into carbon dioxide, water vapor and ammonia) and from decreased amounts dissolved in warmer water (gases are LESS soluble in warm water than in cold water). This carbon dioxide is an important part of plant growth, and is probably second only to presence of water as a limit to the growth of vegetative material. And without plants constantly manufacturing carbohydrates and fats from carbon dioxide, water, and sunshine (with the side reaction of generating oxygen), ALL animal species would soon wither away and die off. Through starvation and anoxia, as the oxygen in our atmosphere is depleted, and as the food supply from vegetative sources becomes scarce.
But all that is probably way too many packets of information for the typical ‘Greenie’ to absorb. They are pretty much confined to linear thinking, even if it turns out to be closed into a circle, making it circular thinking as well.