Contrary to what you might hear on Fox So-Called News - fighting global warming is so cheap that it could be profitable.

And the very, very ugly! Rep. Matt Salmon! The Republican Congressman from Arizona stopped by the San Tan Charter School in Gilbert, Arizona to speak to 2nd and 3rd graders. Parents expected him to talk about how bills become laws - a topic that for years has been capably taught by "School House Rock." But Salmon decided to update the lesson a bit. By using the international agreement to prevent Iran from getting a bomb as an example of how vetoes work. "Do you know what a nuclear weapon is?" he asked the kids - "Do you know that there are schools that train children your age to be suicide bombers"

Dr. David Walters, U.S. Geological Survey (USGS). the Grand Canyon is known around the world for it's remote beauty and being an iconic feature of the American West. But new research shows that there's something foul in the water of this natural wonder. We'll be talking about what's polluting the Colorado River

Sam Daley-Harris, RESULTS/Center for Citizen Empowerment and Transformation (CCET)/Reclaiming Our Democracy and Jim Cason, Friends Committee on National Legislation (FCNL) join Thom. Congress is returning to session and preparing to vote on the international agreement to prevent Iran from getting a nuclear weapon. The debate's heating up - and now the White House is fighting to keep the Schumer's in Congress from scuttling the whole deal.