SAY THIS for Senator Ed Markey: He is one irrepressible optimist. If you put your faith in careful research and scientific consensus rather than pseudo-science and sophistry, the politicization of climate change can be profoundly disheartening. Which is why it’s a tonic to talk to Markey. A longtime leader on the issue, he sees things … Continue reading The Boston Globe: Ed Markey’s optimism for climate-change consensus