global warming is that earth increasingly increase degree = Global Warming is an increase in the average temperature of the earth's atmosphere

global warming's main cause reason is CO2
CO2 is released through using the cars or factory's gas

most people know that global warming is dangerous and global warming  worming's solution

for instance, they have to walk if destination is close so that co2 won't emit is decreasingly released

but mots people don't do it