Solar-powered devices made of wood could help mitigate water scarcity crisis -- ScienceDaily

Inspired by the process by which water is carried through trees from roots to small pores on the underside of leaves, the UMD research team created several new ways in which water can be transported through wood, purifying it for safe use. Energy from the sun and a block of wood smaller than an adult's hand are the only components needed to heat water to its steaming point in these devices.