US companies have been slow to tackle superpollutants like methane and refrigerants, which cause roughly half of recent warming. A new Superpollutant Action Initiative backed by Amazon, Google, and others has committed up to $100 million to cut these gases. The article explains why tracking refrigerant leaks is harder than metering electricity use, and why some superpollutant carbon credits score high for quality. Kaiser Permanente is replacing cooling equipment before failures force upgrades. Google bought credits for destroying 25,000 tons of methane and HFCs by 2030. Workday bought credits from orphaned oil well methane capture. The piece notes that EU regulation pushed faster action overseas, while US firms are now catching up through voluntary markets and better accounting.
