US Republican presidential candidate Senator McCain speaks to employees about alternative energy sources at the Vestas Wind Technology plant in Portland

 
US Republican presidential candidate Senator McCain speaks to employees about alternative energy sources at the Vestas Wind Technology plant in Portland
US Republican presidential candidate Senator John McCain (R-AZ) speaks to employees about alternative energy sources at the Vestas Wind Technology plant in Portland, Oregon, May 12, 2008. McCain pledged to take the lead in combating global climate change if elected president. REUTERS/Richard Clement (UNITED STATES) US PRESIDENTIAL ELECTION CAMPAIGN 2008 (USA)