. >> ifill: elizabeth brackett looks at how one chicago school is dealing with the transition to new state-wide standards. >> i really did find that the kids do understand more, and they learn more. they're more interested in what they're learning. >> brown: plus, as global carbon dioxide levels hit record highs, we analyze the increasing difficulty of combating climate change, with carol davenport of the "national journal." >> ifill: that's all ahead on tonight's newshour. major funding for the pbs newshour has been provided by: moving our economy for 160 years. bnsf, the engine that connects us. and by the alfred p. sloan foundation. supporting science, technology, and improved economic performance and financial literacy in the 21st century. and with the ongoing support of these institutions and foundations. and... this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. >> ifill: house republicans today offered their counter- offer to the president's plan for a deal both sides say is neede