Methane gas is a short-lived climate pollutant with a global warming potential 80 times greater than carbon dioxide in a 20-year period. Therefore, by cutting methane emissions, we can have a powerful effect on the urgent climate change problem in a short time frame. Brazil is the fifth largest emitter of methane gas in the world with no mandatory policies regarding capture or destruction of the gas in landfills.
Within Minas Gerais, approximately 500,000 people live and make their livelihoods from working at these dumpsites. These individuals, often called “catadores,” collect recyclable materials from these locations to sell. Regrettably, they frequently work in hazardous and unhealthy conditions.
Uberlândia, the second most populous city in Minas Gerais, is home to over 2 million residents. The city generates 1,200 tons of MSW daily. Only about 50% of this waste is appropriately disposed of in a sanitary landfill, while the remaining 50% is dumped in uncontrolled dumpsites.
The investment in landfill gas projects is substantial, yet income from landfills is not sufficient to pay back the investment, even when income from the sale of electricity is considered. Carbon credits are essential to incentivize the survival of existing landfills and the creation of new ones.
– Geisa Príncipe, Director of Project Research