Agence France-Presse: The European Union voiced deep concern about climate change negotiations, warning they were heading in the wrong direction with weeks to go before the make-or-break Copenhagen conference. Swedish Prime Minister Fredrik Reinfeldt, the current head of the EU, came to the US city of Pittsburgh for a 20-nation economic summit after top-level talks at the United Nations on climate change. “We are both very worried about the situation,” Reinfeldt said at a joint news conference with …