Sierra

Over 100 years ago, a wooden bicycle highway linked Pasadena to Los Angeles. Now cycling activists are hoping that, by closing the Arroyo Seco Parkway to automobiles for "ArroyoFest," Angelinos can once again imagine a cycling future for LA.

Sierra Magazine asks Matt Stoller, Michael Bocian, David Orr and Newt Gingrich to square off on how climate change will figure in the 2008 Presidential election.

China's pell-mell race towards modernization reduces reliance on bicycle for transportation.