yes, if we kept hurting our nature, such as cutting tree and also using private car,etc. the world will become the hell on earth. now outside the temperature already 35-37 C, it's really hot. i remember when this earth not this hot. i think we must do action by our self first. if everyone can change the household behavior, it would help the earth. simple thing, save energy, not use paper, use public transportation,etc will be supporting this.