Smart, responsive and elegant, the Copenhagen Wheel is a new emblem for urban mobility. It transforms ordinary bicycles quickly into hybrid e-bikes that also function as mobile sensing units. The Copenhagen Wheel allows you to capture the energy dissipated while cycling and braking and save it for when you need a bit of a boost. It also maps pollution levels, traffic congestion, and road conditions in real-time.
HELENE COOPER and JOHN M. BRODER, Obama Presses China for Accountability on Climate December 18, 2009
In a direct challenge to China issued after its leader skipped a key meeting, President Obama pushed for the accord to include a way to monitor compliance with emissions cuts.