Nov 21, 2022
Poor waste management contributes to climate change and air pollution🙁, and directly affects many ecosystems and species. Landfills, considered the last resort in the waste hierarchy, release methane, a very powerful greenhouse gas linked to climate change. Methane is formed by microorganisms present in landfills from biodegradable waste, such as food🥘 , paper 📄 and garden waste. Depending on the way they are built, landfills might also contaminate soil and water 💦 . After waste is collected, it is transported and treated. The transport process releases carbon dioxide — the most prevalent greenhouse gas — and air pollutants😔, including particulate matter, into the atmosphere. Part of the waste might be incinerated or recycled. Energy from waste can be used to produce heat or electricity, which might then replace the energy produced using coal or other fuels. Energy recovery of waste can thus help reduce greenhouse 🟢 gas emissions. Recycling can help even more to lower greenhouse gas emissions .
source ：tiktok
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