To commence with this, an amount of research ( mình nghĩ dùng a number of researches hợp lý hơn?) recently carried out reveals that “global warming” is actually caused by two following reasons. The first underlying factor from which this phenomenon stems is ( this phenomenon derives from) the air pollution. To be more details, a sheer amount of exhaust from motor vehicles, greenhouse gases (CO2, N2O and CH4) from factories as well as refrigeration processes is being alarmingly released into the atmosphere. Additionally, the widespread deforestation including cutting and burning trees simultaneously leads to the fact that our planet is becoming adversely warmer. According to the World Carfree Network (WCN), for instance, deforestation makes up 15% of the global carbon emission, outnumbering the figure of cars and trucks by 1%.
There is no doubt that “global warming” generates a number of grave consequences. The first thing worth mentioning is its tremendous impact on the
weather patterns
. A case in point is that there are more and more powerful and potentially destructive hurricanes happening, which might lead to enormous damages. Besides, that glaciers has dramatically melted recently is one of the direct effects of this issue. More specifically, this process will result in the sharp increase of sea level, which is of the motives for the submersion of coastal areas, and the extinction of polar animals. Reality has shown that penguin and white bear might be disappeared on account of losing habitat. Furthermore, a quantity of diseases also stem from the greenhouse effect. Skin cancer, for example, is due to the
solar
radiation now reaching the Earth’s surface through ozone hole caused by the rise in the temperature.
To put it in a nutshell, global warming is a international thorny issue. If this worsening trend is not soon reversed, it is beyond question that the issue will become even more complicated in the years to come. It is hence a good idea for individuals, governments as well as scientists to join hands to tackle this threat.