The top U.S. and Chinese climate diplomats held talks this week and confirmed bilateral cooperation in reducing greenhouse gases other than carbon dioxide, such as methane emitted from fossil fuel production, the State Department said Friday. John Podesta, senior advisor to President Joe Biden for global climate policy, and his Chinese counterpart Liu Zhenmin co-led two days of working group discussions through Thursday in Washington. The two sides discussed how to cooperate toward a successful U.N. climate change summit in Azerbaijan in November and agreed to deepen technical and policy excha…