Case Studies

“We really wanted to make a greenhouse,” explains Mike Fuller, “but we just couldn’t seem to drink the lemonade quickly enough!” Mike’s sons, John and David, it seems, had seen a programme on the TV about building a solar greenhouse from old plastic bottles, and set their hearts on making [...]

In many parts of the world, obtaining drinking water is a real problem. According to estimates around 900 million people around the globe – that’s one in every six of the planet’s population – have no regular supply of clean drinking water, and there are 300 million of them in [...]