You are forgetting what is the basis of the Global Warming theory. When we produce excess amounts of methane and they go into the air, we produce acid rain. This kills entire forests, entire ecosystems for that matter. Car exhaust literally is the cause for many deaths relating to air pollution. AIDS is overplayed as scientists will most likely find a cure within the next decade, and it is largely preventable with the right education. Starvation in many cases is out of our own control. Destroying the earth with pollutants is not. Btw, you cannot deny that human-induced global warming exists, as I already have shown it does.