With Greece’s membership in the euro zone teetering, fears of bank insolvency rising and Europe’s leaders bickering about what to do, the euro crisis is once again intensifying and threatening to undermine fragile growth globally.

Francois Hollande, France's president, arrives for a news conference following the European Leaders (EU) summit at the European Council headquarters in Brussels, Belgium, on Thursday, May 24, 2012.

At a on Wednesday, regional leaders failed to signal any concrete new steps to stimulate the sputtering regional economy or resolve the competing agendas of President François Hollande of France, who favors stronger action to spur growth, and his German counterpart, Chancellor Angela Merkel, who has opposed aggressive moves to ease the pressure on Europe’s weakest economies.