I am more concerned about Romney's integrity.

NY Mayor

Mitt Romney, too, has a history of tackling climate change.

As governor of Massachusetts, he signed on to a regional cap-and-trade plan designed

to reduce carbon emissions 10 percent below 1990 levels. But since then, he has reversed course,
abandoning the very cap-and-trade program he once supported.

This issue is too important. We need determined leadership at the national level to move the nation and the world forward.

In the past Romney has also taken sensible positions on immigration, illegal guns, abortion rights and health care. 
But he has reversed course on all of them, and is even running against the health care 
model he signed into law in Massachusetts.