What’s working in climate tech (and what’s not): 4 big ideas from a rooftop full of investors and founders

Investors and innovators at the kickoff happy hour at 2026 Pacific Northwest Climate Week. (GeekWire Photos / Laura Scott) Subscribe to Positive Charge : Apple Podcasts , Spotify , Amazon Music , All Episodes Most climate news these days is grim. But at a rooftop happy hour during Pacific Northwest Climate Week , the mood in Seattle was upbeat — and not out of wishful thinking or environmental altruism.