National Trust Ecofund
Ministry of Environment and Water in Bulgaria
German Federal Ministry of Environment, Water, Nature Conservation, Building and Nuclear Safety
Goethe Institute
NASA Climate Kids
United States Environmental Protection Agency
European Commission on Climate Action
European Environmental Agency
UN Climate Change Newsroom
Intergovernmental Panel on Climate Change
Bulgarian Academy of Sciences
UN Environment Program
WWF Bulgaria
Energy Agency of Plovdiv
Climate Coalition – Bulgaria
Young Voices for the Planet
