The only want power
Power to do what? They have no real power, and even if they did its would only be the power to be consulted in matters of environmental policy. Its not like they're getting rich off it. So again I ask, power to do what? Obviously, if they want to have the power to influence environmental policy, they must care for the environment, so there goes that arguement.
We can't destroy the environment, only damage it.
Depends on your definition. If you're thinking in absolute terms, the total destruction of the environment is equal to the destruction of the Earth. Obviously, thats not going to happen any time soon. But if you don't think that we can make the Earth a living hell, you are sadly mistaken.
Just look at any one of the problems facing us today.
-Pollution, which leads to highly increased risk of cancer. Cancer, as you may or may not know, kills people.
-Rampant logging, which eliminates trees and fails to plant new ones. In case you are not aware, we need trees because they convert carbon dioxide into oxygen. Without trees, humanity can not survive.
-Global warming. Cold areas get colder, warm ones get warmer. Humans need moderate climates in which to live. If Canada gets much colder or Florida much warmer, they're going to be uninhabitable.The ice caps are melting, which means that in a century or so, costal cities are going bye bye.
-We are quickly running out of oil. We use oil in pretty much everything. Plastics are made from oil, oil is used to power your car. I'm sure it doesn't bother you, you live in America and are thus reliatively wealthy. But oil shortages are seriously going to affect poorer countries. With America using 25% of the world's energy, your (your as in the U.S's) overconsumption will directly lead to their misery. Also, oil used in combustion (cars) produces copious amount of pollution. See #1.
Can we outright destroy the Earth? Hell no. Nothing short of a few dozen nukes can do that. Can we make it virtually uninhabitable and kill off many millions if not billions of people. Sure can, just watch us.
The Third World needs to be educated
Eh? Didn't you just say that half of America's agricultural output is rotting in warehouses? What does that have to do with the third world. The International Monetary Fond, thr World Bank and the World Trade Organization are working very, very hard to keep the Third World from every getting out of the gutter. Why do you think they're so poor to begin with? They work harder and for less money than anyone in America. So shouldn't they be richer, or atleast on a level comparable to the First World?
Or do you believe that the IMF only wants to help the poor starving Africans and shower them with kisses and rainbows? For every billion in foreign aid that the Third World gets, they pay back double in cheap labour, tax havens and deregulation.