TEST Through erratic weather patterns, forest fires and glacier melt we are already experiencing the effects of climate change. Worse, the process of climate change, based on the levels of greenhouse gases we have already put in the atmosphere, is likely to increase the severity and frequency of severe weather events. If we allow levels of greenhouse gases to continue to rise, the disasters of today will be dwarfed by future catastrophic impacts.
Clearly, one of humanity’s principal challenges in this century will be to stop climate change. To do this, we must drastically reduce our greenhouse gas emissions (GHG) – gases such as carbon dioxide, methane and nitrous oxide that trap heat in the atmosphere, raising global temperature and thereby spurring climate change.