Radiohead frontman Thom Yorke is no tourist in the climate activism world -- he's defended fair trade, campaigned for Friends of the Earth, edited a climate change edition of the Observer, and sought to make Radiohead's tours low carbon affairs. And now he's come to Copenhagen, just hours before a possible agreement, determined to find reason for optimism -- and perhaps set world leaders straight.
"It's not enough," Yorke said of the UK's proposed emissions cuts. "But the political pressure they're feeling, that's very obvious. Hopefully something will come from that in the next 24 hours."