A big boost for the climate summit

All the world’s major economies - including big polluters like the United States, China, the European Union and Brazil - have pledged to address climate change with less than two months to go before the critical United Nations climate conference in Paris.

In contrast to past efforts to reduce greenhouse gases by assigning specific emissions levels only to industrialized countries, while giving developing countries a pass , the Paris conference is asking every country to create its own plan.

New York Times editorial

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