DARK WINTER: HOW THE SUN IS CAUSING A 30-YEAR COLD SPELL (DVD) is a compelling documentary based on John Casey's bestselling book DARK WINTER. Casey's research into the sun's activity resulted in the discovery of a solar cycle now reversing a global warming phase to a dangerous global cooling for 30 years or more. Casey gives an insider's look at the Earth's future, predicting worldwide crop-destroying cold, food shortages, significant loss of life & social, political & economic upheavals.