I was challenged to comment on global warming in a thread that wasn't about that. Figure I'd start a new thread. If the world needs me to get my head on straight about global warming, the world is doomed. I just don't see myself getting that up to speed on such a complex issue. There has to be a better way to insure our future other than relying upon me. Sheepishly I will share my opinions, based on hearing stuff, just to document my current state of ignorance as one documents the beginning of a journey just for the entertainment value later. 1. Earth's atmosphere is slowly warming. 2. CO2 content in the atmosphere is a significant factor in the warming. 3. Human production of CO2 is a significant part of observed increases in atmospheric CO2. 4. Our atmosphere and our oceans have hot spots and cold spots and therefore currents. 5. Temperature alone is an inadequate measure of heat energy, due to chemistry and stuff. So we're not going to see linear warming as the Earth's greenhouse traps a little more of the Sun's energy than before. More like ups and downs in average temperatures per year. 6. People have developed atmospheric models using all the understood significant variables. They test these models by seeing how well they predict the past and also, how well they work for Venus. 7. The models have worst-case and best-case scenarios. Both are not so great. 8. The models can't account for future technology that might reduce our dependence upon CO2 producing fuels. 9. Political opportunists use the climate issue just as they use all crises, to rally personal armies to fite! So it's hard to figure out what's real and what is spin. 10. On the one hand, the Kochs and other oil fat cats have been pouring millions into think tanks tasked to poop out "global warming is a hoax" papers. They need to fuck off. 11. On the other hand, the crazier parts of the green movement tend to say alarmist things. They promote conspiracies and seem to want a revolution so they can get some kind of New Age utopia. 12. Scientists are pretty good at sifting evidence if they are left alone to do just that. 13. Scientists inform policy but they generally don't promote policy. Once they take on that role, they’re functioning as activists, not scientists. That’s fine. Any citizen can be an activist. Okay, that's my starting place. I will add dox of interest as I come across them.