2008年6月大学英语四级试题(听力暂缺)(14)

- we won't do much about it. We will argue over it and may even, as a nation, make some fairly solemn-sounding commitments to avoid it. But the more dramatic and meaningful these

commitments seem, the less likely they are to be observed.

A1 Gore calls global warming an "inconvenient truth," as if merely recognizing it could put us on a path to a solution. But the real truth is that we don't know enough to relieve global warming, and - without major technological breakthroughs - we can't do much about it.

From 2003 to 2050,the world 's population is projevted to grow from 6.4 billon to 9.1 billion ,a 42% increase.if energy use per person and technology remain te same,total energy use and greenhouse gas emissions(mainly,CO2)will be 42% higher in 2050.But that's too low,because societies that grow richer use more energy.We need econmic growth unless we condemn the world's poor to their present

Poverty and freeze everyone else's living standards.With modest growth,energy use and greenhouse emissions more then double by 2050.