Since the formation of the earth there are natural climate changes. But man has had a predominant position in the climate changes.
During the past 100 years, the temperature of the earth increase about 0.5ºC. It may not seem to be like much, bue due to our planet has a delicate ecosystem, the minimum 0.5ºC can lead ice melting, extintion of some species, drastic climate changes, increasing of desets, etc.
But how does the man causes an increase in greenhouse effect? Through of desforestation, the burning of fossil fuels, amoung others, that, when pollutant gases are emited to the atmosphere, prevent heat escape out of the atmosphere and, consequently, cause an increase in greenhou effect.
I agree with you and think that it is really big problem in our society and provokes many natural disasters. But the Earth have passed for that before, however it have taken much more time, nowaday humans are acelerating the process which will have a fatal consequence to us.
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