Despite the gloomy talk that preceded the un climate conference, the opening was upbeat. Most big countries had vowed to cut or limit emissions during the previous few weeks. As delegates arrived, America's Environmental Protection Agency announced that carbon-dioxide emissions were an "endangerment" to health. This allows Barack Obama to regulate them, whatever Congress does.rnThe happiness did not last. On December 8th a draft agreement which had been discussed some weeks ago was leaked to the Guardian. It caused a furore. The "Danish text" had been circulated by the hosts, but not to all parties; and it seems to confirm the futility of moves towards the legally binding treaty that many still want.
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