Q
does polyethylene emit greenhouse gases
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Polyethylene (PE), a widely used plastic, does not emit greenhouse gases (GHGs) while stable or in use. However, during its production and end-of-life processes, specifically if incinerated or left to degrade in anaerobic (oxygen-free) environments, GHG emissions can occur. The manufacturing process of PE involves polymerization of ethylene, a process that heavily relies on fossil fuels, leading to CO2 emissions. Furthermore, when polyethylene is incinerated, it releases CO2 directly into the atmosphere. In landfill conditions, as it slowly degrades, it can emit methane (CH4), a potent GHG. Mitigating these emissions includes improving production efficiency, recycling, and managing plastic waste more effectively to avoid landfill and incineration when possible.
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