solar cooker

"Asian companies should invent and mass-produce truly useful green products with enormous market potentials, like the new Kyoto Box solar cooker. More than 2 billion people use firewood as their main fuel, which puts stress on forests, fills their homes with unhealthy smoke, and emits carbon dioxide and soot. The Kyoto Box consists of two well-insulated cardboard boxes, one inside other, and an acrylic top that traps solar energy to boil water and heat food. The cost? US$5 each."Charles Lockwood 090502 SCMP

呢個發明同一支過的飲管過濾器一樣偉大，偉大在於其便宜，能實在的應用於改善第三世界人民的生活。賺錢又幫到人莫過於此。