Richard Fuller is the founder and president of Pure Earth (formerly the Blacksmith Institute). Considered the world’s leading expert on toxic issues, Pure Earth works closely with governments, local stakeholders, and international organizations around the world to combat the proliferation of toxic pollution in forty-five countries. In 2012, Fuller also led the formation of the Global Alliance on Health and Pollution, a collaborative body tasked with coordinating resources and activities to clean up chemicals, waste, and toxic pollution in low-and middle-income countries. The GAHP currently has thirty-two members, including many affected countries, UN agencies, and bilateral and multilateral donors such as the World Bank. Damon DiMarco is an author, actor, playwright, and historian who wrote Tower Stories: An Oral History of 9/11, a book telling the story of the September 11 attacks from the perspective of those who were directly affected by the event. Publisher's Weekly called Tower Stories a "monumental work"; MSNBC said it was "arguably the most successful attempt at capturing the enormity of the events of 9/11." DiMarco has also authored Heart of War: Soldiers’ Voices from the Front Lines in Iraq, and My Two Chinas: The Memoir of a Chinese Counter-Revolutionary (with Baiqiao Tang), as well as The Actor’s Art & Craft and The Actor’s Guide to Creating a Character (both with William Esper).   Bryan Walsh is the Foreign Editor and Senior Writer on energy and the environment for Time magazine. He lives in New York City.