California, Arizona and Nevada Commit to Reduce Consumption of a Flow That Benefits 40 Million People. The commitment announced this morning requires the three most populous entities to save about 3.7 trillion cubic meters between now and the end of 2026.

Arizona will be the State that sacrifices the most, since it will put 55% of the volume of savings. California, which has the oldest rights, will contribute 30% and Nevada 6%. These states form the lower basin of the Colorado River and correspond to about 9.2 billion cubic meters annually.