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The ozone hole fluctuates in size every year due to natural meteorological variations, but no shrinking trend can yet be seen. However, scientists are confident the Montreal Protocol is working in the long-term, and could be used to limit super pollutants that contribute to global warming.
China's environment is feeling the wear and tear of the country's three-decade growth spurt. Decisions from a recent high-level meeting are the latest indication that it's no longer all about the economy.
As nations gather in Poland to hash out a new U.N. climate treaty, a report shows that global carbon dioxide emissions are on track to set a new record -- putting the world on course for the catastrophic changes associated with the highest emissions scenario.
Japan greatly diminishes greenhouse gas emissions reductions targets to the dismay of countries now attending the annual UN climate conference. The announcement, blamed on the Fukushima nuclear crisis, spread a gloomy mood over the proceedings.