According to research reports, high-cycle glass and plastic wine bottles can reduce the release of greenhouse gases. Recently, the research conducted by the Waste Resources Association (WRAP) has been unanimously praised by the British Glass Company, because it will eliminate the prejudice that glass production can release a large amount of carbon dioxide. Researchers inspected the production and transportation of glass bottles and found that high-cycle light glass bottles produce as much greenhouse gas as light PET bottles. Although the amount of CO2 released in the production process of PET bottles is greater, the amount of gas released during transportation is less. Mr. Rebecca Cockin, Manager of Recycling Department of British Glass Company, pointed out: “We are very encouraged by the report’s research results. The report helps us to expel some criticisms and negative impacts on the glass packaging industry and promote the development of the glass packaging industry.” WRAP Chairman Richard Swannell said, "This proves that the recycling rate of light glass bottles is a positive factor for the environment." This study compared 75cl glass bottles with PET bottles. Bottle types include 45g PET non-recycling bottles, typical 496g glass bottles with 81% recycling rate and 365g glass bottles with 81% recycling rate. At the same time, the research also includes glass bottles with a 365g recycling rate of 92% and PET bottles with the same mass recycling rate of 50% and 100%. The study found that the gas release of the 54g PET bottle was within the release range of the 365g glass bottle.