That means adding a track to the 9.8-mile segment of the Long Island Rail Road's Main Line from Floral Park to Hicksville. The extra track would eliminate the current bottleneck where so many branches converge. It would increase the frequency of trains and enable effective reverse commuting to take place.
If we are to stay below the 2°C temperature rise, we have to reverse this sense of inevitability, whether it is in the guise of pragmatism or complacency. To aggressively pursue a low-carbon economy, the Keystone XL pipeline is not just as good a place to start as any, but better. It is an infrastructure project -- yesterday's infrastructure.