In recent years, there have been many alarming reports to the effect that the world’s climate is undergoing a significant change. All these reports provide strong evidence that the world temperature is increasing day by day. This is called global warming. This increase in global warming is caused by the increasing amounts of carbon dioxide around the earth. The destruction of forests and other habitats is causing the extinction of various plants and animals everyday. If we destroy forests and burn down trees, the effects might eventually endanger us all. Then the weather pattern will change and the world will become much warmer.
Most climatologists believe that the greenhouse effect is the likely cause of that global warming. Climatologists predict that midway through this century, temperature may have risen by as much as 4°C. This could catastrophically reduce mankind’s ability to grow food, destroy or severely damage wildlife and wilderness, raise sea levels and thereby flood coastal areas and farmland. That is the reason why it is a threat to mankind. The alarming news about Bangladesh is that, as a result of the rise of the sea level, southern part of the country may one day go under water. We can prevent it by planting trees in large numbers as well as by preserving those that were planted before.
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