Question

how is global warming the largest threat to humanity?????
answer in few lines

Answer 1

global warming melts up ice in polar regions.
It increases temperature of them earth . which can also cause diseases like cancer

Answer 2

Global warming is the greatest threat to the humanity because it is increasing the temperature of the world by 0.045`C per year. It is a reason why 200 people are dying everyday. This is causing Asthama to nearly 800 persons every day. Because of it there is a hole on the Antarctica. Therefore we should stop this global warming.