Plastics are still a problem and there's room for improvement with green alternativesWorldwide, most plastics end up in landfills and take hundreds of years to degrade. Furthermore, mills that previously used processing chemicals like sulphur are now switching to high-pressure hydrolysis, using just water. Also, the processing of recycled glass is not environmentally clean. The model of recycling is only reliable if the demand for recycled glass remains high. Recycled glass bottles are seldom used.