Grist: We all just love a story where the suspense builds and builds, the whole tale teeters on the brink of disaster but then, just in time, the hero or heroine saves the day. And its no different with climate change. As we watch this slow-motion catastrophe unfurl, we hold out hope for that last-minute save, that silver bullet that could solve the whole problem. The latest hope for a catchall climate fix comes from the secret labs of weapons manufacturer Lockheed Martin, which announced last week...