Pointers for Dealing with Climate Change Denialists

Inevitably you hear it every year, "global warming is a lie, look at the snow and how cold it is outside!"  Conversely you also hear the eronneous "this hot day proves that anthropogenic global warming is real." 

To correct these misunderstanding of anthropogenic climate change, you might refer the rational person to George Monbiot's article explaining how extreme winter weather is perfectly consistent with global warming.  If you have to engage a person of the non-rational type, then this following video can give you some pointers on dealing with such a person.