Another threat to sustainable development is climate change,which requires urgent action to adapt to and mitigate in order to preserve natural systems and lessen its indirect consequences,such as global warming, skin diseases,floodsand other extreme weather occurrences.Ocean temperatures are increasing and sea levels are rising.Crops,animals and freshwater supplies are at risk from longer,more severe droughts.Every nation on every continent is impacted by climate change.Both lives and national economies are being disrupted by it.Sea levels are rising, weather events are getting more extreme and weather patterns are changing.