Eight of the top 10 warmest years on record occurred in the last decade. The snowline where rain turns to powder continues to move uphill. The dry season is longer than ever as wildfires ravage forests and communities. It’s a bleak outlook for the state of the Sierra Nevada snowpack, not to mention our planet as a whole.
California made historic investments in climate measures this year, as state leaders warned of current and escalating climate risks. “We’re dealing with such extremes that all our modeling, even updated modeling, needs to be thrown out,” said Gov. Gavin Newsom when he signed more than 40 bills to fight climate change in September. “The hots are just so much hotter. The dries are so much drier.”
Surrounded by miles of creosote and ocotillo in the Sonoran Desert, state officials and business leaders gathered in October against the backdrop of the ragged peaks of the White Tank Mountains to applaud a plan to turn 37,000 acres of arid land west of Phoenix into the largest planned community ever proposed in Arizona. The development, Teravalis, is expected to have 100,000 homes and 55 million square feet of commercial space. But to make it happen, the project’s developer, the Howard Hughes Corporation, will need to gain access to enough water for its projected 300,000 residents and 450,000 workers.
The Colorado River Basin is in the midst of a sustainability crisis. Climate change and severe drought, coupled with historic overallocation of the river, have caused water users to rapidly drain the system’s major reservoirs to their lowest levels since construction.
On a crisp day this fall I drove southeast from Grand Junction, Colorado, into the Uncompahgre Valley, a rich basin of row crops and hayfields. A snow line hung like a bowl cut around the upper cliffs of the Grand Mesa, while in the valley some farmers were taking their last deliveries of water, sowing winter wheat and onions. I turned south at the farm town of Delta onto Route 348, a shoulder-less two-lane road lined with irrigation ditches and dent corn still hanging crisp on their browned stalks. The road crossed the Uncompahgre River, and it was thin, nearly dry.
After absorbing sunshine all summer, mature rice plants in California’s Sacramento Valley stand as high as three feet tall, in five inches of flood water. Planted in spring, farmers drain their fields in August, and they drive big, loud harvesters into them in September, gently separating the rice stalks from the grain, and blowing the harvest into bankout wagons that they tow beside them.
The word “crisis” ended a Colorado River conference that drew representatives from Southwest U.S. states, tribes and Mexico to Las Vegas this week.
A top Interior Department official closed the Colorado River Water Users Association conference on Friday calling the next three months critical for agreements to deal with drought and climate change.
One deadline is next Tuesday, when federal water managers close public comment on an effort expected to yield a plan by summer to use at least 15% less river water split among seven Western U.S. states, 30 Native American tribes and Mexico.
Utah saw a snowy start to December, which is an encouraging sign for a state experiencing ongoing drought. But experts say it’s still early, and even if Utah has an above-average winter, it’ll take several strong years to make up for a multi-year water deficit.
When the Colorado River Compact was signed 100 years ago, the negotiators for seven Western states bet that the river they were dividing would have ample water to meet everyone’s needs – even those not seated around the table.
A century later, it’s clear the water they bet on is not there.
As climate change continues to shrink the Colorado River’s largest reservoirs, a group of four states that use its water are set to lay out plans to reboot a conservation program. The Upper Colorado River Commission – comprised of Colorado, Utah, Wyoming and New Mexico – plans to announce details of an extended “System Conservation Pilot Program” through which water users could be paid to cut back on their use.
The soon-to-be-launched program aims to use a pool of $125 million from the Inflation Reduction Act for payouts to “mitigate the impacts of long-term drought and depleted storage,” according to presentation slides obtained by KUNC.
