Polyethylene (PET) is often touted as a renewable alternative to petroleum-based products because of its greater environmental impact, low cost, and ease of manufacture.

However, as of late 2015, PET was banned from the U.S. market because of concerns about its environmental impact.

In a 2016 study, researchers from the University of Texas found that PET’s environmental footprint is far larger than that of petroleum.

PET, which is a compound made up of ethylene glycol and polyethylenes, can be used as an ingredient in paints and sealants.

But in 2015, the Environmental Protection Agency (EPA) ruled that the chemical was “unlikely to pose a risk to human health and the environment” and therefore “may be subject to federal bans.”

The ruling also found that the EPA’s use of the word “likely” to refer to the chemical’s environmental impact was misleading.

As a result, PET has been banned from use in the U: the FDA has said that the ingredient could pose a “serious risk” to human and environmental health.

But it’s not just PET that has been controversial.

Many people have also questioned whether polyethylenisone, which has been used in cosmetics, was toxic to humans.

In recent years, there have been reports of its toxicity in some cases.

In 2014, researchers found that an ingredient called polyethyleneglycol, which had been shown to be toxic to rats, was found to have been absorbed by the body and formed a lipid called an ester bond.

The EPA has also ruled that polyethylensulfone (PETSE), which is derived from PET, is not toxic to the body.