Global warming is caused by multiple factors cause. Part caused by human action as a principle. They may do unconsciously or know but still do it!, We can't stop it all but we can reduce it or do something else came up as a substitute. For example, Factories have a lot on the world release toxic fumes. Makes the atmosphere a world destroyed. The current forest will decrease, but we can grow up as a substitute because forests have helped create oxygen, make a good weather. Or reduce the use of private cars. Use public transport or cycling is another choice that reduces the problem of pollution and there are many reasons, that we are still dealing with the technology , so we should start from yourself. Should reduce unnecessary items down. And turned back missed the majority