. >> i'm amanda burrell. i'm in london to find out how to make old houses green.

. >> i'm amanda burrell. i'm in london to find out how to make old houses green. >> and i'm yaara bou melhem in indonesia's south sulawesi looking at how the efforts of local people are restoring this

. >> and i'm amanda burrell in indonesia, to see a wasteland restored. >> and i'm sergio quitana in arcata california learning how to flush with pride.

. >> i'm amanda burrell. i'm in london to find out how to make old houses green. >> and i'm yaara bou melhem in indonesia's south sulawesi looking at how the efforts of local people are restoring this mangrove forest.

. >> and i'm amanda burrell in indonesia, to see a wasteland restored. >> and i'm sergio quitana in arcata calni