The Welch Foundation joins in mourning the death of Ahmed H. Zewail,
a noted chemist and global ambassador for science, who died August 2.

A member of the Foundation's Scientific Advisory Board since 2002, the California Institute of Technology professor also served on the United Nations Scientific Advisory Board, President Obama's Council of Advisors on Science and Technology and as the first U.S. science envoy to the Middle East.  Among his many honors was the Nobel Prize in Chemistry in 1999 and the Welch Award in Chemistry in 1997 for his work in femtochemistry. 

The Egyptian-born scientist was a towering figure in the world of chemistry and will be much missed.