I've just now viewed a marvelous and very hopeful short movie with an introduction by Charlie Sheen! It's called "The Greening of Eritrea: Seawater Brings Hope to Africa's Coast".

 

Eritrea is the newest African nation, founded in 1992; the local Eritrean club meets in my landlord's garage here. The focus of the film is a clever project using seawater for the culture of shrimp and fish, then sending the water enriched by their wastes to fields of pickle weed and mangroves, using them for small animal fodder, building materials and fuel, while at the same time building new agricultural soil, improving the local microclimate and providing work for hundreds of people in the pilot project. These techniques offer hope for 25,000 miles of arid coastlands around the world!