Reuters: A website launched on Friday will help track whether rich countries are keeping a pledge to come up with $30 billion in climate aid for the poor, seen by the U.N. as a “golden key” to progress in talks on global warming. The United Nations-backed site (www.faststartfinance.org) so far lists cash promises by 6 European donors including Germany and Britain and 27 recipients from Bangladesh to the Marshall Islands. Many of the developing nations have blank entries on the amount of aid …