Japan's parliament has enacted a law obliging hundreds of firms to join a carbon emissions trading scheme starting April 2026.
Under the revised law, companies producing 100,000 tons of carbon dioxide or more a year are to join the Green Transformation-Emissions Trading System.
The government estimates that the companies account for nearly 60% of domestic greenhouse gas emissions.
Under the trading system, the companies will be allotted a maximum emission allowance.
Carbon credits will have to be purchased on the market for any emissions above the threshold.