PARIS — French President Francois Hollande met with environmental groups Saturday, pushing for an ambitious global deal to reduce man-made emissions blamed for global warming – with emphasis on helping developing countries adapt to a changing world. The talks in the Elysee Palace came as President Barack Obama, the leaders of China, Russia and more than 140 other countries prepare to converge on Paris to launch two weeks of high-stakes talks. Leaders and climate negotiators from 196 countries meeting at the U.N.