This got little notice when it first hit the press, but depending on the economics it is a very big deal.Polyethylene is an extremely common plastic. Shopping bags, many plastic containers and similar items are all made of it. It is very durable because the bonds in it -- very long strings of chemical bonds -- are quite-durable.Historically it has been almost worthless to recycle because of this fact; the energy required to actually break it down is expensive. But researchers at ORNL figured out a catalytic process using molten salt which.......(Click link to read more)