We found a genius way to revive a poisoned river [video]
https://www.youtube.com/watch?v=ZgItGjKu4mQ
#ycombinator #rewilding #oder #fish_die_off #oderdelta #environment #environmental_protection #nature_documentary #animal_protection #oder_disaster #wildlife_conservation #endangered_species #documentary #wildlife #wild_life #rewilding_europe #wild_animal