| Tuesday 22 September 2230 BST - BBC Two Presented by Jeremy Paxman Tonight we'll be hearing what our Science, Economics and Diplomatic Editors make of today's crucial international gathering in New York. One hundred world leaders are meeting ahead of December's make-or-break conference in Copenhagen aimed at approving a global climate change treaty to replace the Kyoto Protocol. Our Economics Editor, Paul Mason will be live in New York and our Science Editor Susan Watts will be assessing the chances of success. And Jeremy will be speaking to Tony Blair who is also in New York about the obstacles to an international agreement. Plus, shortly after President Obama's UN address on climate change he'll be hosting talks with the Israeli PM Benjamin Netanyahu and the Palestinian leader Mahmoud Abbas. Our Diplomatic Editor, Mark Urban will be watching for signs of a break through. Also tonight Paul Mason reports from the small, working class town of Clairton, Pennsylvania, famous as the location for the 1978 film, The Deer Hunter. He asks what America needs to do to reinvent itself. And to complete the set, our Political Editor, Michael Crick is at the Liberal Democrat conference in Bournemouth, from where we'll be speaking to Lib Dem leader, Nick Clegg. Do join Jeremy at 10.30pm on BBC Two. You can follow Newsnight on Twitter and leave your comments about the programme on the Newsnight blog. | 
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