American Canyon City Council
April 21, 2026

Sea Level Rise
Presentation
Napa Sierra Club Group
Scott Thomason, Kate Bit and
Paulina Viera Zambrano
What Causes Sea Level Rise?
● Human influences
● Ice sheets and glaciers are melting
● Global warming is also causing sea
level rise
Sea Level Rise
Threatens
• Ecosystem services
• Infrastructure
• Community health
2100 Projection, up to 6.6 ft of SLR (Ocean Protection Council, 2024) ● Scientific evidence has recently shown that
homes along Wetlands Drive may be
threatened by sea level rise
Sea Level Rise Threats to
American Canyon
Data sourced from BCDC’s RSAP Atlas Tool
● A recent scientific study has shown that
a large stretch of property between the
wetlands and Mezzetta’s facilities is also
subject to sea level rise
Sea Level Rise Threats
to American Canyon
Data sourced from BCDC’s RSAP Atlas Tool
The Solution to Sea Level Rise is Adaptation
⚬ Nature-based solutions
⚬ Grey solutions
Nature-based Solutions
in American Canyon
Adaptation Suitability for American Canyon (BCDC, SFEI, S • Nature-based solutions can help mitigate the
impacts of sea level rise.
• Nature-based solutions can help protect the
wetlands.
• Opportunities for nature-based adaptation
■ horizontal levees (dark purple)
■ tidal marshes (green)
■ mudflat augmentation (light purple)
■ marsh migration space (magenta)
Our Bay and Its Wetlands: Our Future
Questions?Questions?