Democratic presidential contender Hillary Clinton revealed two parts of her climate change policy on Sunday, vowing to install more than half a billion solar panels across the country within her first four years in office, if elected president. Speaking at a rally in Ames, Iowa, Clinton said she wants to produce enough renewable energy to power every home across the U.S. within 10 years and proposed extending federal clean energy tax incentives. "I want more wind, more solar, more advanced biofuels, more energy efficiency," she said. "And I’ve got to tell you, people who argue against this are just not paying attention." Clinton's campaign is expected to roll out a comprehensive climate change policy over the next few months.