Our Changing Atmosphere
By Michaelyou
@Michaelyou (182)
China
December 3, 2010 12:57am CST
According to the National Academy of Sciemces, the Earth's surface temperature has risen by about 1 degree Fahrenhieit in the past century, with accelerated warming during the past two decades. There is new and stronger evidence that most of the warming over the last 50 years is attributable to human activities. Human activities have altered the chemical cmopostion of the attmosphere through the buildup of greenhouse gases-primarily carbon dioxide, methane, and nitrous oxide.
2 responses
@trruk1 (1028)
• United States
3 Dec 10
Glaciers all over the world are retreating. Arctic ice is dwindling. Temperatures are going up, and human activity is at least partly responsible. Some still say they do not "believe" in global warming. As if it were a matter of faith. It is like saying you do not believe in gravity or you do not believe in apples. It is reality and we need to deal with it.
@Jayzee23 (97)
• United Arab Emirates
3 Dec 10
I hope you've seen the 2012 movie... I think its not about the fact, but it informs us that if we start ignoring then this could happen and eventually we will go back to stone age. It has been 5 weeks in our country there is no rain at all... This is mainly due to pollution, earth atmosphere, ozone disinfection, and changing climate.
Few months before there was this rumor that one scientist discovered the changing climate of our planet earth. And he wrote more than 100 pages report on this. This was kept secret until one person, I don't know lol, hacked into it. But the report is still being hidden, why? We must be aware of the climatic changes so we could take precautionary measures.
