With the Iowa caucuses around the corner, we give you a Short Wave guide (with some help from our friends at NPR Politics) to where the top-tier Democratic presidential candidates) stand on climate change and the environment. Political correspondent and NPR Politics Podcast co-host Scott Detrow) breaks it down for us. Follow host Maddie Sofia on Twitter @maddie_sofia) and Scott @scottdetrow). Email the show at [email protected]).Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)