My views on global warming?

Im 16... just my thoughts on this situation. I honestly don't think this is such a problem as its thought to be. If it was seioursly hurting the earth goverments around the world would start pushing laws stoping the use of fossil fuels it would cause lots of problems but i believe its not such a big problem? i would like some more info on this? what will happen if we keep killing the ozone will there be another ice age, or would sea level rise?