What is Carbon Trading?

Carbon trading is a market-based instrument that targets the reduction of carbon dioxide in an attempt to mitigate climate change. It works by setting an overall limit/cap on the amount of carbon emissions that are allowed to be emitted from significant sources of carbon. Governments issue permits with associated limits of carbon emissions and these permits are given to companies. Companies can trade their excess permits on the carbon market for cash or if they are not able to operate within the limits, they have to buy extra permits from other permit holders.


甚麼是碳交易?

碳交易以市場為基礎,透過為重要碳排放源設立排放上限或總量,達到減少二氧化碳、減輕氣候變化的目標。政府會分配碳排放限額許可證給公司,公司也可在碳市場上把他們剩餘的碳配額出售給其他公司,無法按期實現減排目標的公司則必須從其他許可證持有者那裡購買額外的碳排放配額。