Autor: John Kluge

Karl T. Muth has donated more than 100 per cent of his salaried income each year for the past decade and is an expert on the financial and legal aspects of philanthropy. Michael T.S. Lindenmayer founded Eirene; a social venture that focuses on solving issues that impact at least 1 billion people. John Kluge is Co-Founder of Toilet Hackers; a nonprofit organisation bringing improved sanitation and hygiene to the 2.5 billion people without a toilet in developing nations.