m I don't dismiss the idea of global warming or climate change or whatever you want to call it just because science is wrong about low-fat diets. First off, science isn't wrong about low-fat diets. The science is perfectly fine, what we understand of it so far. *Ideologues* are wrong about low-fat diets. Secondly, I had earth science in school, back when everybody thought global warming was bogus, and I learned about the carbon cycle. And I don't care who you are, you can't tell me that adding carbon to the carbon cycle that was not there previously (at least in recent history, on a geological scale) is going to have no effect at all. Rabbits changed the climate in Australia. We're bigger and more numerous than rabbits. Part of the problem is that we used to adapt to local climates. That is how we became indigenous in places outside of Africa even though Africa is where our species originates. We don't adapt anymore. We do whatever the hell we want and the planet just needs to keep up. Well, that doesn't work. It's exactly what any species does when it's placed outside its natural habitat; witness the behavior of kudzu in the American South. But we're smarter than kudzu. And if we're different than animals in few other ways, the one thing that really differentiates us from the rest of the animal kingdom is our ability to adjust to different environments without utterly destroying them. Changing them somewhat, sure-the book 0000 is instructive in that regard-but there's a difference between tweaking things slightly to make it easier to find food, and totally devastating the landscape and the biosphere. We used to do the former. We now mostly do the latter. If the scientists haven't figured out everything that is going on with the global climate thing, maybe that's because global climate is a bit more complex than human metabolism. Which we have also not completely figured out. Even the people on the side of low-carb or Paleo eating don't have all the answers. But it's not difficult to spot general trends. Just because some people see no reason they shouldn't slaughter oil rig workers and Gulf sea life just so they can drive an Escalade or H0 around town doesn't change the reality. Of course, it doesn't matter what you're driving, in the end. The oil's on all our hands just sitting here having this discussion-where do we think the plastic in our laptops comes from? I guess you could call it another case of carbs killing. HydroCARBons this time, not just CARBohydrates. And in the end this isn't really about planetary survival. The reason some of us on the we-are-probably-heating-up-the-earth side of the argument get so upset isn't because we all necessarily believe humanity will kill the planet-oh sure, some of us believe that, but it's by no means a united front. But more importantly from our point of view, we'll be killing ourselves. Already with the extreme reliance on plant agriculture (there goes that "carbs kill" thing again!), our population has exploded beyond belief. We don't know at this point whether it can all be supported on foraging, as we did before the Agricultural Revolution. Most people say no. I say maybe there's a chance, since on a Paleo diet one has a lower appetite. But it's real dicey. Now with this climate change thing, if indeed we're causing it (and I'm open to interpretation-as I said, nobody knows for sure yet, we just see some general trends), that will likely complicate the problem. How do you convert six-going-on-seven-billion people back to foraging? You can't even get them all to speak the same *language.* It's going to be a mess. And that's just food going away. Never mind what the weather might do in terms of direct damage. Is already doing. I know people living in the Memphis area and in south Louisiana and things have been real ugly lately. If we don't care about any other species-and history shows we don't, I really think we only preserve species now because it gives some college kids a job on the government dime-then you'd think we'd at least care about our own. But history also shows that we don't pay attention to warnings. It's that getting everybody to go along with one idea thing again. So I'm dreading the thought that my kids or their kids will have to witness one hell of a die-off. It's not a comforting thought. Elenor 