Reuters: The United States will try to persuade rich and poor countries to share the burden of fighting climate change next week, with a big U.S. pledge to cut greenhouse gas emissions likely to help mend ties. Washington will hold talks among major economies, including China, the European Union, Russia, India and Japan, in Paris on May 25 and 26 to search for common ground on issues such as how to cut fossil fuel use and promote clean technologies. “The United States (wants) tough …