Can I work with corporations? Are there good corporations doing incredible cutting edge research and development? Absolutely they are. And we should be proud of them.

Between 2013 and 2015, the wealthiest 14 people saw their wealth increase by $157 billion. This is their wealth increase, got it? Not what they are worth. Increase. That $157 billion is more wealth than is owned by the bottom 40 percent of the American people. One family, the Walton family, owns more wealth than the bottom 40 percent.

Giving up is not an option if we want to prevent irreparable harm to our planet.

I'm a United States senator, and I have a responsibility to the people of my state - also to the people of this country.

97 percent of the scientists who wrote articles in peer-reviewed journals believe that human activity is the fundamental reason we are seeing climate change.

This is what class warfare looks like: The Business Roundtable - representing Goldman Sachs, Bank of America, JP Morgan Chase and others - has called on Congress to raise the eligibility age of Social Security and Medicare to 70, cut Social Security and veterans' COLAs, raise taxes on working families and cut taxes for the largest corporations in America.

As the nation at last confronts global warming, it is no time for denial, greed, cynicism or pessimism.