A report by the European Council of Foreign Relations review the waning influence of Europe on human rights issues within the United Nations: http://ecfr.3cdn.net/3a4f39da1b34463d16_tom6b928f.pdf.
There are lots of graphs and charts. Personally, I am not so convinced. Last December, Europe succeeded with its death penalty resolution, and built a broad coalition. There are many other successful initiatives, like new treaties and declarations. Of course, all of these involve broad consensus with the rest of the world. But what else should we expect? For European initiatives to succeed in the United Nations, they have to resonate elsewhere.
Thanks to Niamh Hayes.