Glasgow Climate Negotiators Gear Up for Fight Over Trading Trees

Growing up on the southern edge of the Brazilian rainforest, José Pinheiro Borges learned to watch out for loggers eyeing the trees around his village. Now he’s paid to keep his little patch of forest in tact. That scenario, if repeated across the Amazon, can help cool the planet by preserving one of the largest natural engines for sucking up carbon dioxide molecules.

Borges’s family is among about three dozen in the Rio Preto-Jacunda reserve who joined a carbon-credit program almost a decade ago. The indigenous villagers are paid for every ton of CO2 saved by successfully deterring illegal loggers and preserving about 100,000 hectares (247,000 acres) of rainforest. There’s a kind of carbon broker, São Paulo-based Biofilica, that sells the resulting credits in exchange for a transaction fee.

“It's a way to protect the population here,” says Borges, 48, who also harvests nuts, acai and cassava for a living. “Our extractive activities are sustainable.”

Small farmers are the starting point for the complicated worldwide trade in carbon offsets, the valuable credits produced by planting trees, preserving natural carbon sinks or otherwise removing greenhouse gas from the atmosphere. Demand is booming—more credits changed hands in the first eight months of this year than in all of 2020, according to clean-energy researchers at BloombergNEF—as corporations and governments spend billions of dollars to meet their targets for zeroing out emissions.

Offsets are a convenience that allows buyers to continue polluting while essentially paying someone else to adopt climate-friendly behaviors. The sprawling and so far loosely organized market has come to encompass a wide range of activities, from funding renewable energy to stopping leaks at landfills, bound up in ad hoc deals with emitters.