Anyone well versed in phase transitions knows that an increase in anomalies pertinent to the transition always precede the transition itself, something happening as we speak regarding global warming, a rapidly accelerating event caused by us rubes and not some volcano located in Iceland. With this in mind, check out NOAA's map showing last December's anomalies, something sure to warm the cockles of your heart but if that doesn't do it, maybe this blurb from NOAA will.
The average combined global land and ocean surface temperature for January–December 2014 was the highest on record among all years in the 135-year period of record, at 0.69°C (1.24°F) above the 20th century average.
It gets better.
The oceans are warming so fast, they keep breaking scientists' charts. NOAA once again has to rescale its ocean heat chart to capture 2014 ocean warming.
When it's all said and done, there should be no more questions regarding GW, right?
Addendum: The early Eocene (Ypresian) is thought to have had the highest mean annual temperatures of the entire Cenozoic Era, with temperatures about 30° C; relatively low temperature gradients from pole to pole; and high precipitation in a world that was essentially ice-free. Land connections existed between Antarctica and Australia, between North America and Europe through Greenland, and probably between North America and Asia through the Bering Strait.
This is what the world looked like in the early eocene era.