National Public Radio: The world's governments are meeting today in Bonn, Germany, to work on a U.N. agreement to tackle climate change, a day after European energy companies urged them to adopt a pricing system for carbon emissions. NPR's Nell Greenfieldboyce, who is reporting on the story for our Newscast unit, says the meeting in Bonn is part of the run-up to a major climate summit being held in Paris at the end of the year. Here's more from Nell: "Negotiators from nearly 200 countries have gathered in Bonn. They're...