India’s new prime minister swept into office in May on a message of aspiration and a reputation for action.

During the nearly 13 years that Narendra Modi served as chief minister of Gujarat before becoming prime minister, his successes included drastically curtailing the number of hours that manufacturers in India’s premier industrial state went without electricity. The state’s transmission grid was strengthened and he promoted the development of 900 megawatts of solar generating capacity (equivalent to a large nuclear plant).

There are now well over 16 million refugees worldwide and 65 million people internally displaced by conflict and disasters, according to recent estimates. As more and more people are uprooted from their homes, mounting environmental pressures threaten to reinforce cycles of poverty and displacement if left unaddressed, says Alice Thomas in this week’s podcast.

The Sahel has endured multiple debilitating food crises over the last five years and climate change has often been fingered as the culprit. But it is important to equally consider the amplifying effects of demographic trends on resource scarcity, says the University of Peace’s Marcel Leroy in this week’s podcast.

A central tenet of John Kerry’s time as Secretary of State has been an emphasis on climate change. In a speech in Indonesia this year, he compared the threat of changing climate conditions to terrorism and weapons of mass destruction. Though the United States has been slow to enact major climate legislation, the Department of State has developed a “road map” for responding in its own way. The REDD+ program could play a major role in this response, says Melanie Nakagawa of the department’s policy planning staff in this week’s podcast.