In the packaging industry, the three most commonly used materials are tinplate, aluminum and plastic. Each of these materials requires a different amount of energy to produce and recover. By recycling, the energy cost of using these materials can be reduced. Tinplate and aluminum require less energy than plastic, and less energy for recycling. Recycling tin and aluminium saves nearly 8,200kwh of energy compared to plastic.
This is important because the energy used to produce, recycle and use these materials comes mainly from non-renewable fossil fuel resources, which generate waste harmful to the environment. More than 80% of all energy produced in the world comes from fossil fuels. The main forms of fossil fuels are coal, oil and natural gas. These are mined, refined and processed by processes that are very energy intensive and environmentally damaging. They come from beneath the earth's crust, which requires the use of oil Wells and mining, both of which have high environmental costs. After extracting and refining them, they are distributed around the world and converted into energy.
One way to reduce the impact of climate change is to reduce the use of fossil fuel energy. Using recyclable metals (such as aluminum or tinplate) is a good way to reduce energy consumption in packaging production. Compared with plastic, every kilogram of tinplate or aluminum can save 8,000 kilowatt-hours of electricity and 2,300 kilograms of carbon dioxide. This reduction in CARBON dioxide is significant and would help mitigate the negative environmental impacts of climate change if metal packaging were used instead of plastic.