I have hesitated to 'come out' properly here, but I think I can safely do so, and not get pilloried for it. We are all friends in the Dhamma after all, and that surely overrides any difference of opinion we might have regarding AGW.
I was one of the first people i know to jump on board when it first became popular to be concerned about this issue. I believed in it and was almost losing sleep over it. That is because I have loved this beautiful and wondrous planet we live on, with it's amazing ecosystems and biodiversity, since I was a little kid, and I still do. Although unemployed at the time, I went on to a '100% wind, solar and hydro electricity plan' where, by paying a bit more for my power, they would invest more in these technologies.
But over the years I also began to read some disturbing things. That the measuring stations are in locations where one would expect higher temperatures, for example, thus skewing the data. That most of the climate research is basically computer modelling and not 'hard' science at all. Plus the way that the mainstream media taints anyone who expresses doubt about it with the emotive term, 'denier' with it's implications - we all know what they are hinting at with that term, I think. And does everyone remember how there was this incident where scientists did not get the data that they wanted, and so simply changed it to suit themselves? And we trust these people?
I still live as sustainably I can, by the way. I try to organise life so there is as little driving as possible, I buy organic when I can afford it, and I would love some solar panels (if only I could afford them). But I think that the real issues are the destruction of forests and ecosystems, the erosion of the topsoil, pollution of the biosphere with pesticides, nanoparticles, and genetically modified organisms, the destruction of clean underground water by fracking...take your pick, we have a lot of real issues to work on, and these are the things I will continue to try to raise awareness of. As for CO2, we've had periods in Earth's history when the concentrations were MUCH higher than they are today; it's being used as a 'scapegoat' to distract the masses from those other, truly urgent issues I mentioned, I believe. Where is the alarm about GMO's here? Anyone concerned about the growing land-mass made of plastic in the Pacific? Did the 'water' coming out of your tap catch on fire lately, due to nearby fracking? These are verifiable concerns, not just based on computer modelling.
Then the Blessed One, picking up a tiny bit of dust with the tip of his fingernail, said to the monk, "There isn't even this much form...feeling...
perception...fabrications...consciousness that is constant, lasting, eternal, not subject to change, that will stay just as it is as long as eternity."