| 1 | Democratic presidential candidate Hillary Rodham Clinton tours the Des Moines Area Rapid Transit Central Station on Monday, July 27, 2015, in Des Moines, Iowa. |
| 2 | Democratic presidential candidate Hillary Rodham Clinton speaks during a house party on Sunday, July 26, 2015, in Carroll, Iowa. |
| 3 | She is proposing that every home in the United States be powered by renewable sources by 2027. |
| 4 | Her plan calls for installation of 500 million solar panels over four years. |
| 5 | "This is not complicated folks," the former secretary of state told more than 200 people at Iowa State University, touting a program that would combat climate change at least in part by changing the tax code to promote renewable energy. |
| 6 | "I'm just a grandmother with two eyes and a brain. And I know we're facing huge problem." |
| 7 | Hillary Rodham Clinton is detailing new energy proposals in Iowa to address climate change. |
| 8 | She calls global warming one of the "most urgent threats of our time" and says people are "just not paying attention" if they don't acknowledge it. |
| 9 | But she's still not taking a position on the Keystone XL oil pipeline. |
| 10 | The Democratic presidential contender is proposing that every home in the United States be powered by renewable sources by 2027. |
| 11 | Clinton laid out clean-energy ideas during a tour of a regional bus station in Des Moines, Iowa, on Monday. |
| 12 | When asked about the Keystone XL oil pipeline opposed by environmental activists, she would not comment except to say she wants a State Department review of the project to run its course. |
| 13 | Addressing this issue Sunday, Clinton touted a program that would combat climate change at least in part by changing the tax code to promote renewable energy. |
| 14 | "This is not complicated folks," the former secretary of state told more than 200 people at Iowa State University. |
| 15 | Climate change has become a key issue in the Democratic presidential primary, where Clinton is the heavy favorite. |
| 16 | Billionaire Tom Steyer has led an effort to promote the issue. |
| 17 | Clinton proposes, through tax incentives, to increase the amount of power derived from renewable sources to support every home in the United States within 10 years. |
| 18 | For instance, Clinton said she supports renewing the wind energy tax credit as part of over time shifting the U.S. energy system from one based on fossil fuels. |
| 19 | "We need to get the incentives fixed in our tax system which as you know are too heavily weighted toward fossil fuels," Clinton said during a day of campaigning in central Iowa. |
| 20 | Clinton also hinted that her plans would impose changes on the coal industry, though she also pledged the government's help for workers to make the transition. |
| 21 | "We can make a transition over time from a fossil fuel economy, predominantly, to a clean renewable energy economy, predominantly," Clinton said later during an event at a central Iowa rural home. |
| 22 | Weaning the country off of coal is a tricky political position in key places on the political battleground map. |
| 23 | Southeast Ohio and western Pennsylvania are regions of states that have been pivotal in recent elections. |
| 24 | And they remain the home of key coal-producing areas. |
| 25 | Crediting coal-miners for having "created an industrial revolution," Clinton said "it is important that we help them transition to a new economy." |
| 26 | Clinton's plan also includes the goal of installing 500 million solar panels within four years. |
| 27 | It would also increase capacity to the nation's power grid with a combination of renewable energy sources such as wind, solar, hydroelectric and geothermal. |
| 28 | The plan's estimated cost is about $60 billion over 10 years, and would be paid for by eliminating tax breaks for the oil and gas industry, Clinton spokesman Brian Fallon said. |
| 29 | Former Maryland Gov. Martin O'Malley, also seeking the 2016 Democratic presidential nomination, noted Sunday that he unveiled a climate change plan in Iowa that addresses not just consumer energy use, but industrial and transportation, as well. |
| 30 | As governor, O'Malley doubled Maryland's renewable fuel production, and reduced greenhouse gases in the state by 10 percent during his two terms. |
| 31 | Beamout reported from Ames, Iowa. |