Leafy Skyscraper Going Up in Singapore

"Plants will make up about half of the building, while ramps will connect it to nearby shops and offices so garden lovers can pop by for a visit.

Since it can get rainy in Singapore, the building will collect rainwater and use a grey-water system to flush loos and water plants.

It is to be built with recycled materials and to feature photovoltaics that will provide almost 40% of the building's energy needs."