Tony Dokoupil explores the idea that other American cities want to become the next Brooklyn. We also look at why there are so many retractions in the scientific world. Then, Dokoupil points out the four men who still deny climate change and takes a look at the crowd that traveled to Times Square to destroy Ivory in an effort to bring awareness to the conservation of elephants. Lastly, Dokoupil offers a suggestion as to who we can save the planet in our generation. Greenhouse airs every Thursdays at 12pm.