New landfills are designed to be safe for the environment whereas old ones often weren’t, allowing chemicals and such to escape into the soil and water. While landfills are never a good thing, it is better to try and put all of our trash in one place than to let it spread to the entire world.
The need to update things like landfills could be caused by mistakes made in the old days, or just a lack of adequate technology to make them environmentally friendly. Usually it is a combination of both. Today, however, we have the option to fix those mistakes with help of volunteers like you.
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