ClimateWire: Sen. Lindsey Graham of South Carolina, a proponent of climate action, joined this week a Republican presidential field otherwise populated primarily by global warming naysayers.
It remains to be seen whether Graham's entry into the race changes how climate change will play in the race, but the South Carolinian's announcement of his candidacy Monday in his home town, Central, S.C., didn't mention global warming. In a speech dominated by foreign policy, he nodded to a "safe, clean environment" and...