
Originally Posted by
Python
So-called Global Warming is the biggest con-trick ever conceived by greedy, corrupt governments.
I haven't read all the posts, but this comment really strikes a nerve with me. Our greedy, corrupt government won't admit to global warming, it isn't acknowledged by them, much less conceived by them.
I agree that the earth has warming and cooling cycles, but let's try a little thought experiment here, it's really all just thermodynamics: For millions of years the earth was inhabited by much less life than there is today (at least the kind that consumes and wastes as much as humans). The earth ran its natural courses of warming and cooling without much external influence. Then come along humans, and eventually the industrial revolution. You may remember back in junior high and high school science classes about different types of energy, potential energy and kinetic energy. For example, if you hold a ball above the ground, it has potential energy (due to its mass and gravity and such). Now if you let it go, it has kinetic energy, its now moving. Now think back to chemistry class, there are two type of chemical reactions, exothermic and endothermic. Exothermic reactions release heat as they happen, endothermic reactions consume it. So now think of the earth as a ball above the ground, it has all this potential energy. Now the humans and their industry come along and "drop" it, releasing much of that potential energy in the form of intiating a bunch of exothermic reactions. We are burning up all of the fuel stored in the planet. Every machine we run converts that fuel into heat and mechanical energy. Heat, heat, heat. Just think about all the heat created running cars and airconditioners and industrial machinery. We don't have many endothermic reactions going on to balance all the exothermic ones. We are literally tearing up the earth and releasing all of its stored energy and since no thermodynamic process is 100% efficient, a significant amount of that energy is pure heat. Even without green house gases and natural warming and cooling cycles, it is inevitable that the earth will warm if it is disturbed. As the population continues to increase and we continue to increase our consumption of "things", we warm it at a faster rate. Even if another cooling cycle comes along, the irreversible damage has been done, the earth will never be as cool as it once was.
The best part about going up hills is riding back down!