In our days we assisted to a radical changes in our planet. One of them is climate changes. As we can see everiday, the climate is changing all the time.
Climate change is caused by the emission of pollutants that increase the greenhouse effect, by which gases in the atmosphere create a protective cover or an effect of warming the Earth to prevent the heat absorved from the sun's rays escaping into space. The gases responsible for the greenhouse effect include water vapor, carbon dioxide, methane, between others. Some of these have been affected by human activity increased considerably.
This phenomenon has several consequences like storms, floods, drought and species losses predicted.
I find in Internet* some curiosities about this theme:
--> Global temperature increased by 0.6 ° C since the beginning of the twentieth century.
--> About 0.4 º C of this warming occurred since the 1970's.
--> 1998 was the warmest year in 142 years.
--> 2001 was the third warmest year on the same period.
--> The decade of 90 was the warmest in the last 100 years.
*site: http://www.britishcouncil.org/br/brasil-science-climate-change-how-serious-is-threat.htm
1 comentário:
Climate subject it's a topic that all of us know. It's one of the biggest problem man kind faces nowadays, and inspite existing countless information about that, i think it's important to reveal more information abouth this current problem, and you have done a good job at it, congratulations.
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