It was once among the most promising ways to funnel climate finance to vulnerable communities and nature conservation. The trading of carbon credits, each equal to a tonne of CO2 that has been reduced or removed from the atmosphere, was meant to target quick, cost-effective wins on climate and biodiversity. In 2022, demand soared as companies made environmental commitments using offsets, with the market surpassing $2bn (£1.6bn) while experiencing exponential growth. But the excitement did not last.
Two years later, many carbon markets organisations are clinging on for survival, with several firms losing millions of dollars a year and cutting jobs. Scandals about environmentally worthless credits, an FBI charge against a leading project developer for a $100m fraud, and a lack of clarity about where money from offsets went has caused their market value to plunge by more than half. Predictions that standing rainforests and other carbon-rich ecosystems would become multibillion-dollar assets have not yet come to pass.