Daniel Kurtzer, former U.S. ambassador to Israel, says the West should be flexible enought to preserve political engagement with the Palestinian Authority.

William Chandler, senior policy analyst for energy and climate at the Carnegie Endowment for International Peace, says that emissions-trading programs have achieved mixed results and should be readju…

Yvo de Boer, head of the UN Framework on Climate Change Convention, says “intelligent financing” for green technologies is key to a good climate change agreement.