Informal trash collectors may gain "green" jobs in the formal sector with the closure of the world's largest trash dump. Photo: basmati - authentic help (flickr)

Does your old lunch bag go in the garbage or the recycle bin? For hundreds of thousands of garbage scavengers worldwide who make a meager living by collecting, recycling and reselling trash, that decision is worth its weight in cash.

But at the end of this month, the world’s largest dump will close, leaving many scavengers without a livelihood.

The closure of Mexico City’s Bordo Poniente dump, which will divert nearly 12,600 tons of garbage into recycling and composting plants daily, reports the Associated Press, is a win for environmental groups. It’s also a win for the city’s mayor, Marcelo Ebrard, who announced the closure will take place December 31, the day before he steps down to focus on his campaign for the 2012 presidential race, the LA Times reports.

But trucking the garbage directly to sorting plants leaves out a key player in the waste management system—dump dwellers who for decades have sorted much of the trash and sold the recyclables for income, like freelance garbage collectors.

If the city agrees as promised to negotiate with the guild that the garbage scavengers have organized to voice their concerns, it could mean formal jobs for pepenadores, jobs that pay many times more than what they earn now reselling what they find. After all, living on the dump creates a level of trash expertise and relying on it for an income is quite an incentive to sort it efficiently. They’ve been greasing the wheels of the old system for years; it seems only fair they be part of the new one.

Are the people who've lived on this planet the longest the best-suited to protect it?

Liza O’Reilly thinks so.

She's a researcher with the Institute for Agriculture and Trade Policy who spent last week in Alaska at a climate change summit with native peoples around the world. Participants from Borneo, Mexico, Kenya, Nepal traveled to attend … like the rest of us, they all recognize the earth is in peril. What they're saying is, "Let us help save it."

O'Reilly says it makes sense to take them up on their offer, in part because many indigenous groups are themselves affected by climate change. Not far from the conference site, even, the village of Newtok has lost 320 residents because of swollen rivers and melting permafrost.

Another reason for inviting indigenous peoples to the table is their strong spiritual connection with the earth, O'Reilly says. Because of this, they're more likely to come up with solutions that are sustainable over the long haul.

This very timeless wisdom recognizes [Indigenous peoples’] capacity to lead "developed" Nation/states, corporations, and other failed institutions and models out of the dark, wiping the soot out of their infirmed and capitalistic eyes to look at the Indigenous-based model of micro-energy, developed and controlled by the people.

So what would a climate change solution engineered by indigenous peoples look like? Well, it wouldn't involve massive-scale energy solutions like big dams and new nuclear power plants. Instead, it would curb the production of new fossil fuels and call on the various UN agencies to work with indigenous peoples to "address climate change impacts in their strategies and action plans."

Check out O'Reilly's posts on the Indigenous Peoples' Global Summit on Climate Change.