Masri, and Seyyed Hossein Nasr convinced him to devote the remainder of his life to raising environmental consciousness among Muslims.
Since founding IFEES in 1994 he has spent much of his time traveling to Muslim communities around the world initiating environmental education projects in contexts as diverse as Tanzania, Saudi Arabia, Madagascar, and Indonesia.
[3] Grist Magazine included him as the only Muslim among fifteen world leaders in religious environmentalism, calling him "the foremost expert on ecology from an Islamic Perspective".
[5] In September 2009 Khalid was invited by United Nations Secretary General Ban Ki-moon to participate in the Climate Change Summit in New York City.
[6] In January 2011 he was invited to chair a workshop on "The Faith Factor: Religion's Role in Addressing Global Trends and Challenges" at the World Economic Forum Annual Meeting in Davos, Switzerland, where he was joined by Ex-US President Bill Clinton.