AlterNet: One of the defining characteristics of the current Republican Party is the near-unanimous denial of the science behind the threat of global warming pollution. “The GOP is stampeding toward an absolutist rejection of climate science that appears unmatched among major political parties around the globe, even conservative ones,” writes the National Journal’s Ron Brownstein. Many of the candidates — whom Daily Kos blogger RL Miller has dubbed the “climate zombies” — are signatories of the Koch …