Via the IPCC, Joseph Romm lists the technologies we need to deploy--now, and within the next couple decades--if we want to stabilize atmospheric carbon concentrations at 450 ppm by 2050. He concludes by asking: "So, is the IPCC right? Can we stabilize below 450 ppm with these technologies (and the ones in the full report)? Are there 14-plus wedges here? I think so. Stay tuned." I will, of course, stay tuned, and when he posts his follow up, I'll bring it to you.