Last Update: 04/05/2026 at 2:50 PM EST
Climate Disrupts Maple Syrup Harvests
Coverage from The Washington Post, BostonGlobe.com, and others
Articles
3
Latest Article
03/25
Active Days
4
Executive Summary
Warmer winters and storm damage are cutting maple sap flow in Virginia, Vermont and New York, forcing producers to adapt to protect output
- Highland County producers reported one of their worst syrup seasons after an ice storm and early warm spell
- Warm weather shortened sap flow and made syrup taste bitter or sour in parts of Virginia
- Vermont producers are using vacuum tubing and reverse osmosis to boost yields and cut boiling time
- Vermont now produces about 3 million gallons of syrup a year and nearly 100 million in revenue
- Western New York makers said changing winter conditions are altering sap collection timing
- A study cited in the reporting found about 42 fewer wintry days in the Great Lakes than in 1995
- Producers are also testing black walnut syrup and earlier tapping as climate adaptation strategies
Quick Facts
- What: Climate change is disrupting sap flow and syrup harvests
- Where: Highland County Fairfield and Western New York
- Why: Warmer winters and severe weather weaken freeze thaw cycles
- Who: Maple syrup producers in Virginia Vermont and New York
- When: During recent winter and spring harvest seasons
Coverage Timeline: 4 Days
Featured Article
Highland County, Virginia maple syrup producers reported sharply reduced yields in 2025 after ice storm damage and early spring warmth disrupted freeze thaw sap flow cycles.
Additional Articles
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Vermont maple producers adopt vacuum tubing and reverse osmosis to protect syrup output amid warmer, more variable weather that threatens sap-flow conditions.
In Western New York, maple syrup producers report climate-driven winter shifts that change freeze thaw timing and sap collection for the 2020s season.