Climate change is not a discrete issue; it's a symptom of larger problems. Fundamentally, our society as currently designed has no future. We're chewing up the planet so fast, in so many different ways, that we could solve the climate problem tomorrow and still find that environmental collapse is imminent.
Overhead will eat you alive if not constantly viewed as a parasite to be exterminated. Never mind the bleating of those you employ. Hold out until mutiny is imminent before employing even a single additional member of staff. More startups are wrecked by overstaffing than by any other cause, bar failure to monitor cash flow.