Researchers in California have produced a cheap plastic capable of removing large amounts of carbon dioxide (CO2) from the air. Down the road, the new material could enable the development of large-scale batteries and even form the basis of "artificial trees" that lower atmospheric concentrations of CO2 in an effort to stave off catastrophic climate change. http://greenupgrader.com/3744/synthetic-trees-could-be-environmental-co2-scrubbers/ . The idea of "Heal Like with Like" is a mediaval concept also from Homeopathy. Suprisingly this concept was seriously discussed in a variety of media. Art can provide similar solutions but much more economical.