Customers in switzerland have been helping the climate by doing nothing at all over the past decade. Many swiss utilities have started automatically providing customers with renewable electricity so clean energy is now the default source and consumers have to opt out if they don't want it. A recent study shows that this which greatly increases participation in clean energy programs muss effect. That's hopefully by a researcher at the university of warwick in the uk. His team studied over two hundred thousand swiss households and businesses. He says before their utility made the switch less than three percent of customers opted in to use renewable electricity shortly afterwards however that number skyrocketed to over eighty percent even though renewable energy was more expensive and four years after the switch. Most of the customers were still going. Green leaves says this is not surprising. Given human nature have the tendency to stick to the state of school if someone is defining something as standard then we are quite willing to accept that liba says utilities and other countries could also switched the default energy customers receive to help speed the transition to clean