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b'The extra-solar planet count is more than 400 and rising. Before long we may find an Earth-like planet around another star. If we do, and can visit, what next? Stake out our claim on an alien world or tread lightly and preserve it?\\nWe\\u2019ll look at what our record on Earth says about our planet stewardship. Also, whether a massive technological fix can get us out of our climate mess. Plus, what we can learn about extreme climate from our neighbors in the solar system, Venus and Mars.\\nGuests:\\n\\n\\nKen Caldeira - Climate scientist from the Carnegie Institution\\u2019s Department of Global Ecology at Stanford University\\n\\n\\nKeith Cowing - Biologist, and editor of NASAwatch.com\\n\\n\\n\\nKathryn Denning - Anthropologist at York University in Canada\\n\\n\\nGary Davis - Director of the Joint Astronomy Center in Hilo, Hawaii\\n\\n\\nDavid Grinspoon - Curator of the Denver Museum of Science and Nature\\n\\nDescripci\\xf3n en espa\\xf1ol\\nLearn more about your ad choices. Visit megaphone.fm/adchoices'