Nigel Sizer, global director of the forests program at the World Resources Institute, will lead the Rainforest Alliance.
In his current position, Mr. Sizer has helped to develop programs such as the Global Restoration Initiative and Global Forest Watch, an online system that tracks deforestation around the world. Previously, he was vice president for the Asia-Pacific region at the conservation group Rare, where he developed a grass-roots effort to connect impoverished communities in Indonesia to global carbon markets. He was also the lead adviser to former President Bill Clinton and the Clinton Global Initiative on climate-change and energy issues in Asia, and he established the Asia-Pacific Forest Program at the Nature Conservancy.
American Ballet Theatre
Kara Medoff Barnett, managing director of Lincoln Center International at the Lincoln Center for the Performing Arts, was named executive director.
Evelyn and Walter Haas Jr. Fund
Ira Hirschfield will step down as president at the end of 2016 after leading the organization for 28 years.
Capital Impact Partners
Ellis Carr, chief financial officer at Capital Impact Partners, will replace Terry Simonette as chief executive of the nonprofit. Mr. Simonette is retiring after leading the organization for three decades.
Andrée Simon, chief operations officer, was promoted to a shared post as chief executive.
Maria Cavalcanti, co-founder and managing partner of First Impact Investing, was appointed chief executive.
Children’s Aid Society
Kevin Allan, senior vice president for development at AmeriCares, will be chief development officer.
National Building Museum
Jennifer Barrett, director of development at the Hirshhorn Museum and Sculpture Garden, will be vice president for development.
Other notable changes:
Lacey Huszcza, interim managing director, was appointed senior director of advancement and strategic engagement at the Los Angeles Chamber Orchestra.
Norman Burns II, executive director at Maymont, was named chief executive of Conner Prairie.
Pamela Tatge, director of the Center for the Arts at Wesleyan University, will be executive director of Jacob’s Pillow Dance Festival.
Kellie O’Connell, former director of advancement at Northwestern Settlement House, was appointed executive director of Lakeview Pantry.
Carolyn Brown, executive director of the Boys & Girls Club of Santa Barbara, has retired.
Jeremy Cramer, former vice president for major gifts at City Year, was appointed chief development officer at Facing History and Ourselves.
Susan Mangels, vice president for institutional advancement at Lindenwood University, will be vice president and chief development officer at the Independent Institute.
Robin Newham, head of the Ellis School in Pittsburgh, Pa., will retire on June 30, 2017.
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