Rising temperatures since 1980 suggest that the world's climate is changing. Many scientists believe that there are lots of these changes by human activity. They say that the average temperature CAUSE increase
by 0,6 degrees in the last 100 years.
There are some people who question the global warming theory They say that climatic change is a political issue and that it is not the problem, They also add that if there were any IMPORTANT scientific evidence for it, they the first ones to believe it. BE 20 These scientists suppose that long before people began to use they TAKE
place.
planet periods of climatic change However, more and more evidences of global warming
find

daily.
It is necessary
something now- before it DO
GET
too late.
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