We must act NOW. Global warming isn’t something that we want hence the earlier we act the longer we can live. Global warming started back in the 1850s and ever since then, this vicissitude has started. Global Warming doesn't occur in one place. It occurs everywhere, hence the term global is used. Some places get more affected than others such as: North Pole(Increase in sea levels), The Great Barrier Reef, Australia(Large scale depletion in the Barrier Reef), Venice Italy(Increase in water level causing it to sink), The Amazon(Fires and Droughts), Alaska (Landslide and loss of habitats) etc.