The first thing that is affected by Global Warming is the ocean current. The warming and sea level rise are expected to continue for more than a thousand years even if greenhouse gas levels are stabilized. The delay in reaching equilibrium is a result of the large heat capacity of the oceans. This is a Reality.
For the Myth you have asked about I would like to quote from an article that I have come by so that you can judge.
" According to the Ocean and Climate Change Institute "The Little Ice Age was a five-hundred-year-long period of cold conditions affecting Europe and eastern North America. Contrary to what the name suggests, it did not involve ice-covered continents, as in a "real" ice age. But it did cause enough cooling to disrupt human activities...(It did) cause severe winters on both sides of the Atlantic."They also point that "many of the models used to study changes in ocean circulation have inadequate representations of ocean processes. The models may also be less sensi ...more

It is 100% mislead to others by america to sell his new technology to other countries and to get more benefit.......this winner only proved false by haevy snow fall all over world and few scientist claimed the global warming is false.......as per hindu calender this HOLI comes in the march but due to KHAYA it has come in the month of Feb only.......people are saying summer came in advance where as it is in time......so this MOON calnder proved accurate then western calender.........

Reality.their per capita contribution to emission of green house gases is very very high compared to developping contries.

It is surely a reality

I wouldn't say it is a myth as planets don't orbit the sun in perfect circular shapes! The Mayan long count calender is a gr8 tool for predicting when global warming occurs in our solar system, if u know how to read it. The notion that GW is caused by ppl is a myth, though. It is a natural phenominon. Global warming IS happening in Mars, but there aren't any SUV's being driven there.