Agence France-Presse: Hosts Britain urged G20 finance ministers to put aside their differences and strike a deal on climate funding on Saturday despite fading hopes for an accord at key UN talks next month. As ministers and central bankers also debated how best to firm up the world economic recovery, Prime Minister Gordon Brown urged them to consider a tax on global financial transactions, known as a Tobin Tax. The move would be one way of reflecting the “global responsibilities” which financial …