We Can Terraform the American West
A proposal to “terraform” the arid American West using massive solar-powered desalination and new reservoirs sparks sharp disagreement over feasibility, necessity, and ethics. Supporters see cheap renewables and engineered water systems as a way to unlock new settlement, agriculture, and economic growth; critics argue it would be an ecologically disastrous megaproject that diverts resources from decarbonization, ignores existing water misuse and pollution, and tries to force people into fundamentally hostile environments. Much of the debate centers on energy requirements, brine disposal, wildfire and ecosystem impacts, and whether large-scale landscape engineering has historically done more long-term harm than good.
Overall reaction to “terraforming” the American West
- Strong split between techno-optimism and ecological caution.
- Supporters see it as an inspiring, concrete mega-project on the scale of past dams, canals, highways, and a way to absorb more population and cheap solar energy.
- Critics call it hubris, fantasy engineering, and a solution in search of a problem, given existing habitable land and slowing US population growth.
Water, desalination, energy, and economics
- Desalination is acknowledged as technically mature (e.g., Middle East, Israel), but large-scale cost and brine disposal are contested.
- Some argue: if it were truly cheap, market forces would already be deploying it at scale; others blame US regulatory barriers (e.g., rejected California plants).
- Intermittent solar-driven desal is seen as promising but not yet proven at scale; existing RO plants prefer steady operation.
- Pumping water uphill is flagged as highly energy-intensive; California already spends a large share of energy on the water system. Counterpoint: spring/summer solar “curtailment” could power desal and pumping.
Environmental impacts: deserts, lakes, and wildfires
- Many emphasize deserts as complex, fragile ecosystems, not “empty” land; large-scale irrigation and lakes would likely erase existing biomes.
- Historical examples (Salton Sea, Great Salt Lake, Florida, western water projects in Cadillac Desert) are cited as warnings: endorheic lakes collect pollutants, mega-diversions over-allocate rivers, and long-term maintenance often fails.
- Some argue we already over-mediate western landscapes (fire suppression, mismanaged forests, utilities); others counter that controlled fire and better land management—not massive hydrological changes—are appropriate interventions.
Climate, pollution, and alternative priorities
- Several argue new mega-projects should be secondary to decarbonizing the grid, reducing nitrogen/chemical pollution, fixing existing water systems, and restoring degraded farmland.
- Concern that covering arid, high-radiation regions with water/vegetation may reduce nighttime heat loss to space.
- Discussion of accumulating pollutants (microplastics, CO₂) and impacts on cognition and health; disagreement over how strongly this should influence population and innovation arguments.
Feasibility, politics, and alternative geographies
- Practical barriers highlighted: physics of moving water, oversubscribed rivers, fragile aquifers, water rights, brine toxicity, and US incapacity to build even simpler infrastructure (e.g., high-speed rail).
- Some frame resistance as “conservatism” and loss aversion blocking transformative projects; others say the proposal lacks a compelling “why” compared with enhancing Great Lakes, Columbia Basin, or northern regions.