Stock Photo - 06 June 2023, Poland, Krajnik Dolny: Poppies bloom on the Polish side of the German-Polish border river Oder in the Lower Oder Valley National Park. This morning, the Oder Conference with the Federal Environment Minister Steffi Lemke, Brandenburg's Environment Minister Axel Vogel (both Greens) and the Environment Minister of Mecklenburg-Western Pomerania, Till Backhaus (SPD) begins in Schwedt, Brandenburg. According to the ministry, the meeting will focus on what measures can be taken to better protect the Oder River in the future. Last summer, there was a mass fish kill in the Oder. Experts in Germany and Poland concluded that it was most likely the toxic effect of the algae bloom that had caused the death of the fish. Photo: Patrick Pleul/dpa. - Krajnik Dolny/Poland