Road freight emissions worldwide as of 2020, by vehicle type

Approximately 1.2 billion metric tons of carbon dioxide is produced worldwide by 27 million heavy-duty trucks (HDTs). This accounts for 41 percent of global road freight emissions. In comparison, the fleet of 144 million Light Commercial Vehicles (LCVs) produced roughly half the emissions of HDTs. The global road freight sector is responsible for nine percent of global greenhouse gas emissions.

全球范围内，由两千七百万辆重型货车（HDTs）产生的二氧化碳总量约为12亿吨，占全球公路货运排放的41%。与之相比，一亿四千四百万辆轻型商用车（LCVs）的排放量约为重型货车的半数。全球公路货运领域对全球温室气体排放的贡献达到了9%。