four ways to save the enviroment

1) dissolve all waste(both organic and inorganic) in high heat, that high heat can be transferred from the Earth's deep interior
2) there should be an underground network of high-speed trains linking each city
3) a tower should be built to space, it is basically a screw with no sharp tip and with a wall on the outside of the "thread", there will ba a magnetically propelled elevator in the center of the tower and it will have it's own helium-3 power plant to power the elevator, the tower will also have a space station at the top
4) and gas powered engines should be replaced with helium-3 powered engines, helium-3 is a clean and potent energy source that is abunddant on the moon