The Rev. William Somplatsky-Jarman has served as the Associate for Mission Responsibility Through Investment (MRTI) and Environmental Justice of the Presbyterian Church (U.S.A.) since 1984. He is staff director for the elected volunteer MRTI Committee, which implements General Assembly policies on socially responsible investing through dialogue with corporations whose stock the church owns. He has coordinated numerous corporate dialogues, spoken at shareholder meetings and written articles and study guides on corporate responsibility. He also oversees PC(USA) involvement in environmental issues.

He has served on the board of directors of the Interfaith Center on Corporate Responsibility and for a decade has represented U.S. Protestant churches in United Nations Climate Change negotiations. He also serves on the board of directors of the Ceres Coalition.

The Rev. Somplatsky-Jarman has published articles in journals including Christianity & Crisis and The Disciple and has written chapters of two books: The Social Investment Almanac and Christianity and Ecology.