"The officials from around the world who will gather in South Africa on Monday to convene the latest round of U.N. climate negotiations are facing an uncomfortable fact: The global pact that has dictated greenhouse-gas targets since 1997 may no longer be relevant.

The mandatory targets of the Kyoto Protocol cover less than a third of the world’s carbon output. Major emitters are not bound by it. And, increasingly, the world is relying on a patchwork of measures rather than a universal treaty to lessen the impacts of global warming.

"BEIJING — With global climate talks set to begin next week, China on Tuesday issued the most comprehensive document yet on its plans and negotiating positions on emissions."

"The acidification of the world’s oceans from an excess of CO2 emissions has already begun, as evidenced recently by the widespread mortality of oyster larvae in the Pacific Northwest. Scientists say this is just a harbinger of things to come if greenhouse gas emissions continue to soar."

"HONG KONG — Chinese solar panel makers plan to shift some of their production to South Korea, Taiwan and the United States in hopes of defusing a trade case pending against them in Washington, according to industry executives. But at the same time, the Chinese industry is considering retaliating by filing a trade case of its own with China’s Commerce Ministry."

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"Naomi Oreskes is a science historian, professor at the University of California, San Diego, and co-author (with Erik Conway) of Merchants of Doubt, a book that examined how a handful of scientists obscure the facts on a range of issues, including tobacco use and climate change. Her seminal paper in the journal Science, 'Beyond the Ivory Tower: The Scientific Consensus on Climate Change,' challenged - back in 2004 - the notion that climate change science was uncertain. Her work has documented the spread of doubt-mongering from an industry practice to a political strategy."

As the public's demand for practical information on climate change grows, Congressional Republicans have killed a no-cost measure that would help the public get that information.

"Several times a day, long trainloads of coal trundle through Missoula to power plants in Washington. Those routine runs generate lots of electricity for homes and lots of consternation for politicians and scientists concerned about the trade-offs. In the short term, coal's convenience and low price make it a simple answer to the nation's energy needs. But its pollution, damage to water supplies and impact on global climate may produce a long-term cost we're unable to afford."

"Ahead of critical talks and despite pledge for new treaty by 2012, biggest economies privately admit likelihood of long delay."

"The top U.S. environmental regulator will propose early next year twice-delayed rules on greenhouse gas emissions from power plants, she told the energyNOW television show."