Growing Returns

Crop-switching in the megadrought: Can guayule help Arizona farmers use less water?

This year, farmers in Pinal County, Arizona, will lose two-thirds of their irrigation water from the Colorado River because of a historic shortage declaration triggered by the driest period in more than 1,000 years. And within two years, they will be completely cut off from the Colorado River.

Some farmers are responding by fallowing fields. Others are selling their land to solar companies. And then there’s Will Thelander, a farmer who partnered with EDF, Bridgestone Americas and the University of Arizona to test a new crop that uses half as much water as the alfalfa he previously grew.

Crop-switching to a desert shrub called guayule used to produce rubber is one of just many strategies that will be needed in Arizona and other regions to adapt to water scarcity and maintain agricultural economies in a new era of aridification. However, it’s not nearly as simple as just planting different seeds in the ground.

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10 ways policymakers can support climate resilience in the West

It seems every day I come across a heartbreaking headline about how extreme heat, wildfires and ongoing drought are plaguing the West.

Indeed, the climate crisis has hit home in the Colorado River Basin and is threatening everything from agriculture to water supplies. The basin’s two main reservoirs­ — Lakes Powell and Mead — are at record low water levels, threatening the water security essential to communities, wildlife, recreation and agricultural production across the Southwest.

To help policymakers address these pressing climate challenges, EDF contributed to a recent report, Ten Strategies for Climate Resilience in the Colorado River Basin, authored by Martin & McCoy and Culp & Kelly, LLP, that analyzed multiple approaches to building climate resilience and identified the top 10 priorities. Read More »

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This landmark water conservation agreement is good news for Arizona. We need more like it.

Water scarcity in the Colorado River is becoming more urgent by the day. As temperatures soar to record levels — 122 degrees in Phoenix last month — Lake Mead has plummeted to 37% of its capacity, the lowest level since the nation’s largest reservoir was filled in 1935.

Amid this dire picture comes one significant piece of good news: In the largest ever multisector response to drought, final funding has been committed to enable the Colorado River Indian Tribes (CRIT) to conserve nearly 49 billion gallons of water (or 150,000 acre-feet) in Lake Mead over three years.

This project is the largest single conservation effort to date, both in dollars and volume of water, in the Colorado River Basin. It is a harbinger of the unprecedented collaboration that will be required going forward to build resilience to climate change and water scarcity in the West.

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New Lake Mead forecast spares Arizona – for now. Here are four critical steps to water security.

Arizona just got another temporary reprieve from water cuts in Lake Mead, for the second year in a row. However, sustainable water management — of both the Colorado River and groundwater — remains crucial for communities in the Southwest to become resilient to increasingly arid conditions.

A new, closely watched 24-month study of water levels on Lake Mead, the country’s largest reservoir, means Arizona has managed to avoid substantial water cuts next year. On Thursday, the U.S. Bureau of Reclamation predicted Lake Mead’s elevation will be 1,089.4 feet on Jan. 1, thanks to an unusually wet winter and seven states reaching a historic agreement on how to conserve Colorado River water. Read More »

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Drought Contingency Plan: Averting a looming crisis on the Colorado River

It’s finally time to celebrate that federal and state agencies as well as local water districts have agreed on the terms of Drought Contingency Plan (DCP) agreements in both the Upper and Lower Colorado River basins to manage water more sustainably.

The DCP is intended to incentivize water conservation while protecting existing water rights, recognizing the values of the basin’s agricultural communities and respecting the need to protect the basin’s environmental resources.

Representatives from the seven Colorado River Basin states gathered in Phoenix today to mark the historic milestone and publish a joint letter to Congress. In the letter, the states urge Congress to pass federal legislation by April 22 to authorize the Department of Interior to implement the DCP to address “a looming crisis.” Environmental Defense Fund signed a letter with our conservation partners expressing strong support for the DCP and urging Congress to support its enabling legislation. Read More »

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Three ways the farm bill will help western states adapt to drought

The bipartisan farm bill that President Trump signed into law today contains far-reaching provisions to conserve water and build drought resilience in the American West.

Sens. Dianne Feinstein (D-Calif.), Cory Gardner (R-Colo.) and other western lawmakers recognized the importance of providing more funding to support the region’s crucial and increasingly stressed water systems.

Western legislators secured planning and cost-share funding for groundwater recharge work in California, a critical improvement in the law as producers begin the challenging task of bringing groundwater basins back into balance under California’s Sustainable Groundwater Management Act.

The new provisions in the farm bill also could help farmers and water agencies develop and fund projects that improve drought resilience and planning in the Colorado River basin, where the river supplies water for 40 million people and 6 million acres of farmland each year.

Here are three key provisions that stand out for helping to enable farmers and water managers in the western U.S. adapt to a world with less water: Read More »

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Critically low Lake Mead levels highlight need for Arizona action

Lake Mead water users this week learned we once again narrowly avoided water cutbacks by the skin of our teeth.

A 24-month projection released Wednesday by the U.S. Bureau of Reclamation shows we skirted federal mandatory water cuts for now, but prospects for 2020 do not look good. The forecast found Lake Mead water levels will end this month at 1,079 feet – a mere four feet away from the 1,075-feet threshold that would trigger a federal shortage declaration and mandatory cuts.

The report predicted Lake Mead will dip just below the threshold to 1,075 feet as early as May 2019 – in nine months. At the beginning of 2020, Lake Mead levels are predicted to be at approximately 1,070 feet and then predicted to fall to as low as 1,053 feet in the summer of 2020.

An official shortage declaration has been staved off until at least August 2019. That’s when the next key projection comes out, for January 1, 2020.

Water elevation of Lake Mead has been declining in recent years. (Data: U.S. Bureau of Reclamation)

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4 reasons why Arizona water is on the right track

The Lake Mead “bathtub rings,'” as seen from Hoover Dam.

Drought is the new normal in Arizona and the Colorado River Basin. The Colorado River is over-allocated, and potential reductions in Arizona water deliveries have become more and more likely.

Just last summer, we watched Lake Mead drop to one of its lowest levels ever. And even with a wet winter this year, Lake Mead’s elevation remains low. The river that provides 40 percent of Arizona’s water supplies needs our help.

A new deal

This summer, several parties came together to sign a “system conservation” agreement to address the situation. The State of Arizona, City of Phoenix, U.S. Bureau of Reclamation, and the Walton Family Foundation agreed to compensate the Gila River Indian Community to leave 40,000 acre feet of its 2017 Colorado River water entitlement in Lake Mead.

This is about 1.3 billion gallons of water, which is roughly the amount needed to serve 100,000 people in a year. The conserved water is designated as “system water” to help keep Lake Mead from falling below 1,075 feet – the elevation at which a federal shortage declaration is triggered and water delivery reductions are mandated (as stated in the proposed Lower Basin Drought Contingency Plan between Arizona, California, Nevada and the U.S. Bureau of Reclamation).

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Inclusion and collaboration: Governor Ducey has a new strategy for water in Arizona

Governor Ducey has a new strategy for water conservation in ArizonaLast week, Arizona Governor Doug Ducey illustrated strong and consistent leadership in addressing Arizona’s pressing water supply needs with two significant announcements.

A powerful voice for water

First, Governor Ducey appointed longtime water attorney and Gila River Indian Community member Rodney Lewis to the Central Arizona Water Conservation District (CAWCD) Board of Directors. This appointment was widely applauded across the region as a positive step, most notably as a sign that including diverse voices in water management decisions is key in moving the state toward improved sustainability and collaboration, both within Arizona and with regional partners in the Lower Colorado River Basin. Read More »

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