The fourth-longest river in the world, the Mississippi drains part or all of 31 states - and in that context, our individual actions may mean little.
Webiga afaraad ee ugu dheer adduunka, Mississippi waxay qubtaa qeyb ama dhammaan 31 dowladood - macnaha guudna, falalka shaqsiyadeena ayaa laga yaabaa inay yaraadaan.