State officials are hoping dire climate predictions and water shortages will convince Coloradans to get involved in planning how to share a dwindling resource.

Colorado Water Conservation Board staff released the second iteration of the Colorado Water Plan on Thursday, which is now open for public comment. The first version of the plan was implemented in 2015.

The updated plan lays out four interconnected areas for action: vibrant communities, robust agriculture, thriving watersheds and resilient planning. Although municipal and industry does not currently experience a gap, the plan predicts a 230,000 to 740,000 acre-foot shortfall for cities and industries by 2050. According to the plan, about 20% of agriculture diversion demand is currently not met statewide, and that gap could grow to a 3.5 million acre-foot shortfall by 2050 under the “hot growth” scenario that would see temperatures rise 4.2 degrees Fahrenheit.

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Meeting these supply-demand gaps will require hundreds of water projects throughout Colorado’s eight river basins, and carries a price tag of $20 billion. These projects, many of which have benefits to more than one water-use sector, are laid out in each roundtable’s Basin Implementation Plan.

The 239-page document is set against the backdrop of climate change, which plays a bigger role in this water plan than in the 2015 version. The first water plan did not include projections of future climate change in its analyses. Three of the five planning scenarios now include assumptions of hotter conditions in the years to come.

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According to the plan, Colorado has had three of the top five driest years on record since 2000 and has experienced a 2 degree Fahrenheit increase in average temperature. The state may see an additional 2.5 to 5 degree warming by 2050. Most projections show a decline in spring snowpack and more frequent heat waves, drought and wildfire, all of which have implications for water.

Environmental and recreation water needs could see the worst impacts since those uses generally have the most junior water rights.

The 2015 Water Plan racked up more than 30,000 comments and state officials are hoping Coloradans become even more involved this time around. The plan lays out three levels of engagement citizens can take and encourages Coloradans to promote water conservation, join water-focused stakeholder groups and coordinate with local leaders to advance water policy.

And there is a small bright spot that shows the potential for change when citizens get engaged: The plan says that Coloradans have reduced their per-person water use from 172 to 164 gallons a day, a 5% reduction in demand since 2008, mainly due to conservation efforts.

Sands said the tough conditions can open people’s minds and make them more willing to come to the table to talk.

“I think we are actually going to see more collaboration than ever,” he said.

The update to the Colorado Water Plan is open for public comment until September 30 and CWCB staff will also hold four online listening sessions. The plan is scheduled to be finalized by the CWCB in January 2023.

Read this story in its entirety at AspenJournalism.com.