Ways to stop climate change, ranked

A fascinating list of ways to reduce global warming, ranked by effectiveness and cost, with some surprising findings.

Refrigerant management–basically what happens when you discard an air conditioner–is the top opportunity, above anything energy-related. After that comes onshore wind farms, then two food-related items: reducing waste and eating more plants.

Pragmatic and encouraging! The authors have edited a book around all of the opportunities, Drawdown.