However, some of my friends told me another version: 1) global warming is not that disastrous actually, and 2) global warming is mainly a result of periodic solar activity and some other "mighty" factors, activities of human beings is just an "infinitely small" in such a case. And they do provide me some data as evidence, and these data seems persuasive.
Is there anyone who got quite a insight in such an topic, or just interested in? I really want to know more about it, coz if the version my friends told me is right, too many notions will change: international politics, Kyoto Protocol, new energy, automobile, relationship between developed and developing countries, vegetarianism...
Share your knowledge and point of views