Since the first industrial revolution the world passed
for an difficult period. Factories and cars are the most polluters that exist, the
CO2 generated by them cause climate changes and cause the greenhouse effect.
Today it is difficult to solve this problem because
not all countries want to collaborate with the reduction of emission of gases.
The capitalism left us hostage of money and with that also of productivity and
when a coutry produces more, more pollution it causes and more difficult is to
salve the problem.
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