Agence France-Presse: Greenpeace activists placed five large chunks of ice in front of the venue where EU environment ministers discussed global warming Thursday to denounce the bloc’s “melting” leadership on climate change. “Europe’s climate leadership melting away,” said leaflets distributed to passers-by in the Belgian capital Brussels. European Union nations agreed last year to cut carbon dioxide emissions by 20 percent by 2020 compared to 1990 levels, while slashing energy consumption and …