Copenhagen summit 2009
Factory chimneys and sunset

Page last updated at 12:53 GMT, Saturday, 28 May 2011 13:53 UK

President Barack Obama (AFP)
Key states reach a deal they describe as a first step in tackling climate change, amid warnings it does not go far enough.

Beijing dismisses claims by UK Climate Change Secretary Ed Miliband that it blocked progress at the Copenhagen talks.

UN Secretary General Ban Ki-moon says a US-backed climate deal is a good beginning, but critics dismiss it as a failure.

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