Guardian: Protest and direct action could be the only way to tackle soaring carbon emissions, a leading climate scientist has said. James Hansen, a climate modeller with Nasa, told the Guardian today that corporate lobbying has undermined democratic attempts to curb carbon pollution. "The democratic process doesn’t quite seem to be working," he said. Speaking on the eve of joining a protest against the headquarters of power firm E.ON in Coventry, Hansen said: "The first action that …