NASA @NASA
Is polar ice melting? Unfortunately, yes. And it’s the number one contributor to sea level rise. @NASAClimate scientist Dr. Brooke Medley tells us how NASA studies the relationship between ice sheets and sea level to better understand our changing planet. https://t.co/enP5S1HtXz https://t.co/DGNc7gI7w5 — PolitiTweet.org