The Problem
Detroit's Vacant Land Crisis
Detroit has 100,000+ vacant lots — 18 square miles of empty land. Who holds them: DLBA 59,617 lots (down from 67K in 2016, having sold 28,801), City P&DD 5,381 lots, private owners 41,685 lots. The city pays $13.44/lot × 5 cuts/year = $6.72M annually just mowing. Each lot generates only ~$30/year in property tax. Meanwhile, Tree of Heaven and Japanese Knotweed colonize unchecked.
Management doesn't scale. The DLBA's city subsidy was cut from $10.5M to $0 in FY2025. Only 20% of Detroit's parkland is classified as "natural areas" (vs. 57% national median), and 19% of the city's tree canopy sits over unprotected vacant land. When government funding is unreliable, an autonomous agent with its own DeFi treasury is more resilient.
Sources: DFC, "Saving for the Future" (2025), DLBA Q2 FY25 Report
A Green Space Equity Emergency
Only 6% of Detroit's land is dedicated to parks and recreation — vs. a 15% national median. 87% of Detroit buildings are more than a quarter-mile from a park. The communities with the highest social vulnerability scores have the least green space access.
86% of Detroit neighborhoods experience temperatures 8°F+ higher than surrounding rural areas. Roughly 3,160 residents live in intra-urban heat islands 10°F+ hotter than nearby areas — and more people of color and people in poverty live in the hottest neighborhoods. Suburban neighbors have 30% more tree canopy — a legacy of white flight.
Sources: Planet Detroit (2025), Michigan Tech / Urban Forestry & Urban Greening (2025)
63% reduction in poor mental health near greened lots. 40% reduction in violent crime (Flint, MI study). 76% increase in outdoor recreation. Property values recover up to 19% in high-vacancy neighborhoods. Tree canopies reduce pedestrian temperatures by up to 21°F.
U.S. urban trees store 700M tonnes of carbon ($14.3B value), remove 711,000 metric tons of air pollution/year ($3.8B), and avoid 110 billion gallons of stormwater runoff annually. Philadelphia's green infrastructure NPV: $1.94–4.45 billion over 40 years. Every $1 in street trees returns $3.
Dryad's Solution
An autonomous AI agent running 24/7: receiving biodiversity data from community volunteers, detecting invasive species, hiring contractors, verifying their work via GPS-tagged photos, paying them in USDC, and recording every milestone onchain.
Self-sustaining: Lido stETH yield → DIEM → Venice inference → property taxes → contractors. The loop funds itself from DeFi yield without touching principal.
Why Autonomy Matters
Most urban greening programs fail when funding cycles end — lots revert to neglect within 2–3 years. Community-led maintenance outperforms municipal-only approaches by 2× in crime reduction, but requires sustained coordination that volunteer energy alone can't guarantee.
Dryad solves both problems: an agent that never stops, funded by a treasury that never depends on annual budgets, verifying impact through community science (iNaturalist) rather than self-reporting.
