Why are Styrofoam Coolers so bad for our environment?
Styrofoam coolers are currently perceived negatively because, after use, the majority of products made from the material are placed in landfills. Also, because they are so bulky, Styrofoam materials occupy a disproportionate amount of space in a landfill. Also, Styrofoam or polystyrene products are typically brittle and therefore tend to break and fragment easily. This makes it more likely that they end up in runoff, and eventually our streams, rivers and oceans.
Frightening Statistics
Why is Styrofoam more likely to end up in landfills?
It is difficult to collect and largely non-recyclable.
As result the harsh reality is that most Styrofoam products we Americans discard do end up in landfills.
What are the solutions? 
Sustainable Alternatives
When possible we Americans can use alternative products that have higher secondary market values than Styrofoam. These materials are more likely to be collected and recycled as they are more desirable to recycling companies. The recycled materials are used to produce other "downstream" products such as carpet padding or other products. This is an example of "sustainability".
What Materials Are Likely to be Recycled into other products?
Materials that are more dense relative to the volume they occupy and also collapsible are better suited for collection and recycling.
When compared to bulky molded Styrofoam coolers, collapsible products made of denser materials are easier to collect and transport.
IPC's GreenLiner is a collapsible insulation liner that is made of relatively dense polyurethane foam.
GreenLiner is Recyclable


Learn more about recycling here