Chinese scientists have developed a kind of "solid water" that can be used for planting trees in deserts. Ninety-seven % of the "solid water" is actual water, while the remaining 3% is a kind of macromolecular polymer extracted from animals and plants. Wu Yunxiang, a researchers for the Shenyang Senlu solid water company, said, The "solid water", which is packed indegradable paper, is not pollutive and can be placed deep in the earth together with the root of plant.