SuperCitizen

Western water law operates primarily under "prior appropriation" — first in time, first in right. The Colorado River Compact of 1922 over-allocated the river based on unusually wet 1920s flows; sustained drought has forced Lake Mead and Lake Powell to historic lows.

Major issues:

Colorado River reallocation: The seven Compact states must agree on cuts that current users won't voluntarily make.
Tribal water rights: Federal Winters doctrine reserves water for tribes; many rights remain unquantified or unfulfilled.
Groundwater regulation: Most states underregulate groundwater; California's SGMA (2014) is a major exception.
Agricultural use: ~75-80% of Western water goes to irrigation; efficiency and crop-shift options.
Urban use: Phoenix, Las Vegas, Los Angeles facing supply constraints.

Spectrum of framings

How adherents on each side of the conventional left / center / right spectrum frame this issue — written so each camp would recognize the framing as charitable.

left

Progressives generally favor stricter conservation, tribal-rights fulfillment, and environmental-flow protection.

center

Most centrists favor market-based reallocation, conservation incentives, and modernized infrastructure.

right

Conservative views vary by region: Western conservatives often favor protecting existing rights and against federal intervention.

Perspectives

Each perspective is presented in terms its advocates would recognize, with the concerns they treat as paramount. None is endorsed.

Conservation / reform advocates

The Colorado is over-allocated and the climate is drying. Significant agricultural-use cuts, urban-conservation mandates, and tribal-rights fulfillment are all required for sustainable use.

Long-run sustainability
Tribal water rights
Environmental flows

Existing-rights defenders

Senior water rights are property; their reallocation by federal fiat upends Western economies and farms. Voluntary market-based reallocation is the legitimate path.

Property-rights protection
Voluntary market transactions
Federalism in water law

Market-and-conservation advocates

Water markets, voluntary efficiency programs, and federal infrastructure investment can shift water use toward higher-value applications without confiscatory federal action.

Water markets
Conservation incentives
Infrastructure modernization