Landfills will always leak. Sure, we can try to line them with multiple plastic barriers, but the reality is that these barriers will get holes and tears in

Landfills will always leak. Sure, we can try to line them with multiple plastic barriers, but the reality is that these barriers will get holes and tears in them and let contaminated water out. Sure, we can detect that and dig out the whole landfill into a new landfill whenever the liner fails, but at some point into the future there will be no money to do that. Instead, we should aim to not put contaminated stuff into the landfill in the first place. Which in turn means don't sell toxic stuff to consumers.