Q and A with dr Wojciech Szymalski 04.08.2020 14:00 The president of the Institute for Sustainable Development discussed An Appeal prepared by the Institute to mark 100 years of the environmental protection in Poland. Audio 08'06 Q and A with dr Wojciech Szymalski, the president of the Institute for Sustainable Development in Warsaw pixabay.compixabay.com Presented by Danuta Isler