Geert Aerts

About

Retired energy efficiency engineer

Speaking appearances

• November Happy Hour 2025-11-21 — Portland
• PDX Climate Hikes: Summer Edition 2025-08-10 — Cascade Locks
• PDX Climate Hike: Winter Edition 2025-01-12 — Clark County
• Beer, Bites and Energy Mixer 2024-07-12 — Portland