100 röster mot våld och krig),[1] which focused on educating young people about alternatives to violence between individuals and nations alike.

The initiative coordinated a series of public school events and raised funding to produce a book that was distributed free of charge to all Swedish 16-year-olds.

In 2007, Wikström was awarded the St. Eriks Medallion (in Swedish) by the City of Stockholm for, as the citation read, “his meticulous and buoyant depictions of the capital city in photographs.” In 2010, Wikström was honored by Sweden's Princess Christina “for his contributions to building bridges between culture and the business community.”[5] For their work with Peace!

He has served on the boards of directors of the Lennart Nilsson Award[10] for science photography and the Press Photographers Club.

In 2010, Wikström was instrumental in establishing the international non-profit foundation, Expressions of Humankind, which supports scientific research and education centered on photographic images and the written word.