YES! Innovative solutions with limited resources. Spreading and placing crushed rocks is how Easter Islanders overcame the climate change that followed the loss of trees. A drying wind replaced moist woodlands, and the land became arid grasslands. Fortunately, there was a centrally located volcano composed of tuff that they could turn to. The tuff is a sedimentary rock made from layers of air-lain, partially fused, and partially cemented volcanic ash that was relatively easy to chip away at with a piece of harder basalt rock. The tuff was high in essential trace metals and porous, able to hold water. Family groups carved an ancestor out of the rock. They sang songs to help with the chipping work. Plantings of yams, taro, sugar cane, bottle gourd, sweet potatoes, and trees required the stone dust to grow. Tuff cobbles were cut and placed in a circle around each plant to hold water. On Easter Island, the natural weathering of rocks not only captured carbon dioxide but plants were enabled to grow and draw down even more carbon dioxide, turning it into carbohydrates that fed a nation and, with healthy soils, growing trees. Rock on with more vegetation and soil!