Oops, cooling, not warming, someone call Al.
Check it out:

Better start investing in some warm clothes because German scientists are predicting that the Earth will cool over the next century.

German scientists found that two naturally occurring cycles will combine to lower global temperatures during the 21st century, eventually dropping to levels corresponding with the “little ice age” of 1870.

“Due to the de Vries cycle, the global temperature will drop until 2100 to a value corresponding to the ‘little ice age’ of 1870,” write German scientists Horst-Joachim Luedecke and Carl-Otto Weiss of the European Institute for Climate and Energy.