the most important challenge

Mr Lam had showed us a documentary to inform us how the global warming increased terribly, the article that I read warned me again and I began to realize that it is high time we should consider it seriously. The main information in the article is that if people do not slow down the pace of Co2 emission, North pole will become a part of history and human's memory, as a result, increasing sea level will swallon the cities near the sea as well as other awful aftermath we are not able to predict now.The urgent situation should be acknowledged and understood by everyone, however, in order to make the article not radical, the author cautiously complemented that the real cause of global warming was still controversial. He still wondered if he should make a clear instruction, however, no time for hesitating. Unlike the "calm" media , I want to shake others with power and emotion, even if some points are a little partial, or how can I draw the attention of sleeping people?
I was from the north of China, I do really feel our winter is becoming warmer and warmer, when my parents recall their childhood, the detail impressed me most was the ground covered with thick ice, however, this year my mother told me that it only snowed several times in Changchun. I do not deny that the nature really changes by itself, however , if the one of the factors which cause the global warming is not co2 emission, will the climate change so fast? On the other hand ,even if co2 emission was not guilty for it, do you think the redundant emission is not harmful?
If we recalled the 2006 year, people paid most of their attention on politics or conflicts. Arguments for benefits always exits among the countries , however, comparing the so-called benefits they care most to the whole environment, which is heavier in the scales of the fate of the human-beings? Protect and improve the environment will not only benefit us, also our descendant, if we continue damage the environment , our descendant will not appreciate for the magnificent culture or advanced technology created by us, in contrast,they will hate us because of the "masterpieces" we caused .
If we care for the future generation , why couldn’t us reject the conflicts and unnecessary arguments, establish a united organization to face the challenge together? Why couldn’t we make our intelligence into good use instead of wasting them on advanced and terrible weapons?
The most dangerous enemy is pollution , the most seminal issue is environment.
Wake up, it is still not too late.
http://www.kentucky.com/mld/heraldleader/news/world/16778982.htm