Mexico is experiencing one of its most widespread and intense droughts in decades. Nearly 85 percent of the country is facing drought conditions as of April 15, 2021. Large reservoirs across the country are standing at exceptionally low levels, straining water resources for drinking, farming, and irrigation. The mayor of Mexico City called it the worst drought in 30 years for the city, which is home to about 9 million people.  This drought doesn't stop at the Arizona borders . The entire SW USA and Mexico are affected.  - NASA

Interstate water disputes are as American as apple pie. States often think a neighboring state is using more than its fair share from a river, lake or aquifer that crosses borders.  Currently the U.S. Supreme Court has on its docket a case between Texas, New Mexico and Colorado and another between Mississippi and Tennessee. The court has already ruled this term on cases pitting Texas against New Mexico and Florida against Georgia.  Climate stresses are raising the stakes. Rising temperatures require farmers to use more water to grow the same amount of crops. Prolonged and severe droughts decrease available supplies. Wildfires are burning hotter and lasting longer. Fires bake the soil, reducing forests’ ability to hold water, increasing evaporation from barren land and compromising water supplies. - HCN

Wracked by drought, climate change and overuse, a key reservoir on the Colorado River could sink to historically low levels later this year, new US government projections show, potentially triggering significant water cutbacks in some states as early as next year.  The projections released by the US Bureau of Reclamation show that Lake Mead, largest reservoir in the US and a vital water supply to millions across the Southwest, could fall later this year to its lowest levels since it was filled in the 1930s. - CNN

In Phoenix, two cities are emerging: one is water-rich, the other water-poor  Every two weeks, Dawn Upton floods her lawn. She treks into her back yard, twists open two valves big as dinner plates, and within minutes is ankle-deep in water.  “You have to have irrigation boots, girl,” she says during a video tour of her property in Mesa, a suburb of Phoenix, Arizona. She flips her camera to reveal green grass, then tilts her phone skyward at four towering palm trees. As she walks, she pans across pecan, pomegranate, and citrus trees – lemon, orange, a grapefruit sapling. A tortoise, between 80 and 100lb, lumbers toward her, chewing. “There’s Simba,” Upton says. “Hey buddy! What is that, Simba? You can’t eat it.” She pats him affectionately on the head. - Guardian

State officials are putting farmers in south-central Arizona on notice that the continuing drought means a “substantial cut" in deliveries of Colorado River water is expected next year.  A statement issued Friday by the state Department of Water Resources and the Central Arizona Project said an expected shortage declaration “will result in a substantial cut to Arizona’s share of the river, with reductions falling largely to central Arizona agricultural users." - AZ Family