- Speaking
- ecological/climate collapse and our response to it, both practically and spiritually
- the challenges and rewards of building cities that are better for cycling, and for everyone
- writing “political” fiction that highlights fact and science in a way that doesn’t overwhelm the story
- anticipating and responding to the coming wave of global mass migration in a way that is humane and politically acceptable to receiving countries
- Book clubs, in person & virtual
David speaks to diverse audiences on such topics as: