SERI - Sustainable Europe Research Institute
SERI is a pan-European think-tank exploring sustainable development options for European societies.
It integrates the ecological objective to reduce environmental space use with elaborated economic, social and institutional sustainability strategies. SERI aims to further develop the exchange of ideas between environmental citizens, organizations, governments, trade unions and industry. SERI member offices are in Vienna, Austria and Bad Oeynhausen, Germany.
SERI developed a simple calculator for Greenpeace which determines the Ecological Footprint of four categories: food, consumption, mobility and living.