The transportation of people and goods from one place to another creates about one-third of all greenhouse gas emissions. Of that, 80 percent comes from cars and trucks.
What are the prospects for reducing those emissions? How is global climate change already affecting existing transportation systems? And how will it affect the ways we build and maintain bridges, roads, tunnels and transit systems for the rest of the century?
Noted transportation and environmental practitioners Stephanie Pollack and Al Biehlerdiscuss what’s gone wrong — and what’s starting to go right.