The state's controversial global warming law still has the support of a majority of Californians despite growing doubts about its potential impact on the economy, according to a Field Poll released Tuesday. The poll shows 58 percent of registered voters support Assembly Bill 32, which will require significant reductions in greenhouse-gas emissions. The poll was commissioned by Next 10, a San Francisco nonprofit group that supports green technology and reducing gases blamed for global warming. Next 10 released the survey as AB 32 is essentially fighting for its life; a conservative group, bankrolled by Texas oil companies, is pushing a...