Yes, petrochemicals contribute to greenhouse gas emissions in several ways. The extraction, processing, and transportation of petrochemicals requires energy, which often comes from burning fossil fuels like coal and natural gas, releasing carbon dioxide into the atmosphere. Petrochemical production itself also generates greenhouse gases such as methane and nitrous oxide. Additionally, many petrochemicals are used as feedstocks for manufacturing plastics, which can persist in the environment for centuries and contribute to climate change.