Global Warming
I'm not a scientist, but there are scientists that say the current weather conditions, and melting polar ice caps are due to Global Warming as a direct result of Man's activity in the last century, or so. From what I understand of what I listened to science programs on TV, this opinion is based on the comparison of Earth to Venus (and a whole lot of assumptions). There are also scientists who say that the current weather conditions and melting polar ice caps is part of a normal, natural variation in Earth's environment. So, it's really a matter of which scientist's interpretations you choose to believe. But, I think, that the "powers that be" the interpretation of Global Warming is a good way to justify to make changes in policies (world-wide) to take away, or limit individual's rights. People are going to wake up one day, and realize that they do not have rights any more, and have to live with the fact the sat by and just watched it happen, and in some cases urged/cheered it on. Who knows how slowly or quickly any of it will come about, but the point is, it is happening right now, before our eyes - but so many people, simply choose not to see it.
On the subject of being "green," I do believe that we should be responsible, and take care of the Earth, because the Earth does not belong to any of us, it belongs to God. And, taking care of the Earth falls in the category of respecting other people's property.