Climate negotiations: 30 years of melting hope and US power


              FILE - A youth runs over what remains of the glacier, that lost most of its volume during the last years, on top of the Zugspitze mountain near Garmisch-Partenkirchen, Saturday, June 25, 2022. Once the world had hope that when nations got together they could stop climate change. Thirty years after leaders around the globe first got together to try, that hope has melted. (AP Photo/Michael Probst, File)
            
              FILE - Homes are surrounded by floodwaters in Jaffarabad, a district of Pakistan's southwestern Baluchistan province, Sept. 1, 2022. (AP Photo/Zahid Hussain, File)
            
              Trees stand in Usingen near Frankfurt, Germany, Thursday, Nov. 3, 2022. The COP27 U.N. Climate Summit is set to take place in Sharm el-Sheikh, Egypt, beginning Sunday, Nov. 6. (AP Photo/Michael Probst)
            
              FILE - Activists display prints replicating solar panels during a rally to mark Earth Day at Lafayette Square, Washington, April 23, 2022. Once the world had hope that when nations got together they could stop climate change. Thirty years after leaders around the globe first got together to try, that hope has melted. (AP Photo/Gemunu Amarasinghe, File)
            
              Steam rises from the coal-fired power plant Niederaussem, Germany, Nov. 2, 2022. Once the world had hope that when nations got together they could stop climate change. Thirty years after leaders around the globe first got together to try, that hope has melted. (AP Photo/Michael Probst)
            
              FILE - In this Dec. 6, 2015, file photo, environmentalist activists form a human chain representing the peace sign and the spelling out "100% renewable", on the side line of the COP21, United Nations Climate Change Conference near the Eiffel Tower in Paris. (AP PhotoMichel Euler, File)
            
              FILE - Demonstrators from Extinction Rebellion holds placards at a protest about Loss and Damage to the earth during the COP26 Climate Change conference in Glasgow, Scotland, Nov. 7, 2021. Once the world had hope that when nations got together they could stop climate change. Thirty years after leaders around the globe first got together to try, that hope has melted. (AP Photo/Alastair Grant, File)
            
              FILE - Environmentalists and citizens hold banners calling for reduction of green house gas emissions in front of the Heian shrine in Kyoto, western Japan on Dec. 7, 1997.  The world has warmed by more than a degree and spewed a trillion tons of heat-trapping gases since that 1992 summit. (AP Photo/Katsumi Kasahara, File)
            
              FILE - Climate activists Elizabeth Wathuti, of Kenya, Vanessa Nakate, of Uganda, and Helena Gualinga of Ecuador attend the climate protest alongside the World Economic Forum in Davos, Switzerland, May 26, 2022. Once the world had hope that when nations got together they could stop climate change. Thirty years after leaders around the globe first got together to try, that hope has melted. (AP Photo/Evgeniy Maloletka, File)
            
              A bucket wheel excavator is mining coal at the Garzweiler open-cast coal mine in Luetzerath, Germany, Wednesday, Nov. 2, 2022. Once the world had hope that when nations got together they could stop climate change. Thirty years after leaders around the globe first got together to try, that hope has melted. (AP Photo/Michael Probst)
            
              FILE - Climate activists hold a demonstration through the venue of the COP26 U.N. Climate Summit in Glasgow, Scotland, Friday, Nov. 12, 2021. Once the world had hope that when nations got together they could stop climate change. Thirty years after leaders around the globe first got together to try, that hope has melted. (AP Photo/Alastair Grant, File)
            
              FILE - U.S. President George Bush is watched by first lady Barbara Bush as he signs the Earth Pledge at the Earth Summit in Rio de Janeiro, June 12, 1992. The Earth Pledge says that each signer pledges to work to the best of his or her ability to protect the earth. (AP Photo/M. Frustino)
            
              FILE - President Joe Biden walks off after speaking during an event about the "Global Methane Pledge" at the COP26 U.N. Climate Summit, Nov. 2, 2021, in Glasgow, Scotland, as John Kerry, United States Special Presidential Envoy for Climate is seen taking the podium, as shown on the screen. Once the world had hope that when nations got together they could stop climate change. Thirty years after leaders around the globe first got together to try, that hope has melted. (AP Photo/Evan Vucci, File)
            
              FILE - The Utah State Capitol, rear, is shown behind an oil refinery on May 12, 2022, in Salt Lake City. Once the world had hope that when nations got together they could stop climate change. Thirty years after leaders around the globe first got together to try, that hope has melted. (AP Photo/Rick Bowmer, File)