Question

what is a global warming?
what are its causes?

Answer 1

global warming means increase of sun light .due to this uv rays will Fall on earth

Answer 2

On the one hand, Co2 is continuously being released because of human activities. On the other hand, area under forests is decreasing. Plants utilise Co2 from the atmosphere for photosynthesis, thereby decreasing the amount Of Co2 in the Air. Deforestation leads to an increase in the amount of Co2 in the air because the number of trees which consume Co2 is reduced. Human activities, thus, contribute to the accumulation of Co2 in the atmosphere. Co2 traps heat and does not allow it to escape into space. As a result, the average temperature of the earth's atmosphere is gradually increasing. This is called GLOBAL WARMING.



Global warming can cause sea levels to rise dramatically.

Global warming could result in wide ranging effects on rainfall patterns, agriculture, forests ,plants and animals.


A recent climate change report gives us only a limited time to keep the green house gases at present level.


Otherwise the temperature may rise by more than 2 degrees Celsius by the end of the century, a level considered dangerous.