I’m at the Aspen Environmental Forums, an annual conference focused on many different aspects of climate science, energy policy, conservation, and other environmental issues. You can follow along on Twitter with the tag #aef2012, and I’ll be tweeting regularly from the panels I watch. For instance, if you check out the tag now, you can find some great tweets from last night, covering a discussion with Stewart Brand about biotech, cloning, and the possibility of reversing extinction.