I think the greenhouse effect is natural, only now the effect is too fast that can cause damage on the surface of the earth. This femonena can threaten human life, and damage the ecosystem and also damage the environmental balance. and most importantly this phenomenon can lead to global warming and other terrible things. if this phenomenon is not addressed immediately. I agree with my friends To avoid damaging the ozone layer on the earth's atmofser layer. So we have to reduce the various tools or materials that can produce carbon dioxide