Economy Science What Killed Tons of Fish in a European River? No Answer Yet By Yscien on Saturday, August 13, 2022 Poland’s environment minister says laboratory tests following a mass fish die-off have detected high salinity levels but no mercury in the Oder River. That means the mystery is continuing as to what killed tons of fish in Central Europe. … TelegramWhatsAppPinterestFacebookMastodonNextdoorX Related Previous Post Next Post Related Posts Economy Science G20 Social discusses goal of lifting 600 million people out of poverty by 2030 Economy Science Protesters gather at UN climate talks in ‘global day of action’ Economy Jake Paul beats boxing legend Mike Tyson