Four million off-grid Indians are ready to save their precious World Heritage site with sustainable ways of living. They are already living virtually carbon-free in the world's most unique and largest wetland. Two of their islands have vanished because of rising sea levels due to the effects of climate change. Low-cost coal or kerosene produces a carbon-footprint; fossil fuels are not a viable option. Instead, solar panels, hybrid power plants, and cow manure are local solutions. With 1.3 billion people still looking to get electricity in the world, these sustainable options may just save our planet.