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With the prospect of reduced Colorado River deliveries as early as 2018, U.S. and Mexican negotiators have been in a race against the clock to forge an agreement that involves sharing any future shortages — and are hoping for a signing before President-elect Donald Trump takes office on January 20th. Water managers on both sides of the border say the accord will be crucial in spelling out how the United States and Mexico would take cuts when a shortage is declared on the river, a lifeline for some 40 million people in both countries.

Several months ago, managers of water agencies in California, Arizona and Nevada were expressing optimism they could finalize a deal to use less water from the dwindling Colorado River before the end of the Obama administration. Now that Jan. 20 deadline no longer seems achievable and parties to the talks acknowledge they likely won’t be able to finish an agreement until at least several months into President-elect Donald Trump’s administration.

Poseidon Water hopes to help quench Orange County’s thirst, but first the company’s proposed desalination project must slake a thirst of its own. That’s why Poseidon has long eyed a coastal power plant that has, for more than a half-century, sucked up seawater to cool its massive generators. The AES Huntington Beach Generating Station’s giant smokestacks and steam boilers will be gone in a few years, replaced under state orders by a smaller plant that uses air, rather than the ocean, to keep from overheating.

When California water officials assess the drought, the first place they look is the northern Sierra Nevada mountains.

Rain and snowmelt from the area feed into a complex system of rivers, canals and reservoirs that send water across the state. And by almost all measures, the drought picture in Northern California has dramatically improved over the last two months, as a series of storms have helped replenish the state’s two major water projects. So far this season, rain levels in the northern Sierra are 180% of average, with 23.5 inches of rain falling — and more on the way this week.