California reached a major milestone this week with zero areas of abnormal dryness for the first time in 25 years, following one of the wettest holiday seasons on record. The state's 14 of 17 major reservoirs are at 70% capacity or higher, and wildfire risk is nearly zero. However, climate scientists warn that while conditions are currently favorable, California should expect more extreme weather swings between wet and dry periods due to climate change's "atmospheric sponge effect."