According to Rensselaer Polytechnic Institute (RPI)’s recent study, the emerging solid-state lighting that replaces incandescent and fluorescent bulbs with LED can reap enormous savings in cost, natural resources and pollution. The firm claims that over the next 10 years, savings of more than $1.8 trillion will eliminate the need to burn almost a billion barrels of oil in power plants that would otherwise produce 10 gigatons in the carbon dioxide emissions.