Reuters: Former Vice President Al Gore urged weary climate delegates to agree a new climate treaty next year and drew loud cheers on the last day of difficult two-week U.N. climate talks on Friday. The talks were on course to meet a minimum goal, to sign off on a fund to help poor nations prepare for global warming, but they were likely to delay any decision on climate targets. Gore urged 145 environment ministers gathered in the western Polish city of Poznan to put aside climate blame …