By: Mark Leon Goldberg on August 01, 2013 On the line this week is Mark Montgomery of the Population Council. We discuss global demographic trends, how climate change is affecting demography, and his groundbreaking research into the migration trends of adolescent girls. Have a listen now or download via iTunes. Previous episodes Episode 11: Kenneth Roth Episode 10: Live from the UN, Volume 2. Episode 9: Mia Farrow Episode 8: Suzanne Nossel Episode 7: Live from the UN, Volume 1. Episode 6: PJ Crowley, former State Department Spokesperson Episode 5: Octavia Nasr, Reporter Episode 4: Arsalan Iftikhar, “The Muslim Guy” Episode 3: Dodge Billingsley, filmmaker. Episode 2: Laura Seay, who you know as @TexasinAfrica Episode 1: Heather Hurlburt, National Security Network