Maine — Prepare Now for 2050
Maine's own climate science gives the state a clear planning horizon: many of the conditions communities will face in the 2050s are already measurable today.
Sea level
Maine reports roughly eight inches of sea-level rise already and uses 1.5 feet of additional relative sea-level rise by 2050 as a key planning benchmark, with higher scenarios also considered for risk-sensitive infrastructure.
Heat and precipitation
Maine's average temperature has risen more than 3°F since 1895. State projections indicate substantially more very hot days by the 2050s, while intense downpours are also increasing.
Forests and winter
Forests cover nearly 89% of the state and support a major forest economy. Warmer winters, reduced snowpack, changing precipitation, drought, and invasive pests all affect forest conditions and winter-dependent industries.
Why 2050 matters
The trees that will shade Maine communities in the 2050s have to be planted years in advance. Roads, bridges, water systems, shoreline infrastructure, and public buildings constructed today may still be operating then.
- Protecting water supplies and groundwater recharge areas now can improve future water security.
- Preserving wetlands and floodplains can reduce flood risk.
- Designing infrastructure for future rainfall, heat, and coastal conditions can reduce repeated rebuilding.