The unsettling story of how global warming helped fuel two record-breaking multi-billion dollar weather disasters thousands of kilometers apart this winter highlights just how unpredictable and dangerous our CO2 turbo-charged climate system is becoming. On the west coast, California is suffering its worst winter drought ever recorded. The failure of the rainy season left critical snowpack levels at just 30% of normal. And half of that meagre amount melted in a single week in mid-April. Take a look at the satellite images below of the California and Nevada snowpack this year vs last year.