One of the current leading events of global science policy took place November 17-19, 2011 in Budapest, Hungary. The main theme of 2011 World Science Forum, attended by 700 participants from 108 countries, was The Changing Landscape of Science - Challenges and Opportunities. Internationally-renowned scientists and science policy makers expounded on the geographical, thematic, and social aspects of this subject focusing on some of the most burning issues in science and the global society. The Forum´s closing statement, Declaration on a New Era of Global Science, was endorsed at closing session in the Hungarian Parliament Building. The complete text of the declaration can be read at http://www.sciforum.hu/. and Ivo Svejkovský.