Occupy Wall Street may be "leaderless," but it's far from directionless.

In the time since the protest movement began on Sept. 17, its "We Are the 99 Percent" message has exploded into a national rallying cry, inspiring not only a bustling mini-city in New York's financial district, but also an overnight network of sympathizers from Seattle to Miami. According to the unofficial umbrella group Occupy Together, some 1,500 cities worldwide will see "Occupy" events this week.

And while the nebulous campaign is focused mainly on economic issues, it has also strived for inclusiveness, winning the support of diverse groups ranging from teachers and college students to nurses, bus drivers and construction workers. When its momentum coalesced into the recent Occupy Wall Street March, it included some 5,000 people, many of them from organized labor.

But the march also was buoyed by another group of rabble-rousing upstarts: environmentalists. Fresh off their own nonviolent stand outside the White House -- where they spent two weeks protesting the proposed Keystone XL oil pipeline -- the re-energized U.S. environmental movement has now found an even bigger, broader stage. And like most factions of Occupy Wall Street, it seems perfectly happy to share that stage with other interests.