In a remarkable example of natural engineering, beavers constructed a dam that filtered polluted water flowing into a protected area—achieving what local authorities had spent seven years planning but had not yet implemented. The animals unknowingly completed the project for free. The beaver dam slowed water flow, trapped sediment, and prevented contaminated runoff from spreading downstream. When officials inspected the site, they realized the dam accomplished the same environmental goals as a p

837K views · 19K reactions | Environmental activist GD Agarwal died after carrying out a 111-day hunger strike to protest government inaction on cleaning up the Ganga. Agarwal held a PhD in environmental engineering from the University of California in Berkeley and dedicated his life to saving the river. Prime Minister Narendra Modi offered his 'condolences' after Agarwal died. | Brut India | Facebook