These visualizations show model projections of the precipitation anomaly from 2000 to 2100 as a percentage difference between the 30-year precipitation averages and the 1970-1999 average. The dates displayed represent the center of the 30-year average; so, the 30-year spans are +/- 15 years from the displayed dates. The percentages are computed as follows: 100% x ( (30-year span) - (1970-1999 span) ) / (1970-1999 span). Separate animations are shown for annual averages and for seasonal averages in the United States. Spring precipitation is displayed to demonstrate the strong drying signal in the southwest. Summer precipitation is displayed because of agricultural community interest. The other seasons are included for completeness.