Digital watermarks about packaging material help waste management (endplasticwaste.org)

Today, only about 10% of plastic is recycled. Digital watermarks— imperceptible postage stamp-sized codes printed on plastic packaging—can help bridge this gap by carrying information about the packaging material. As plastic waste enters a recycling centre, high-resolution cameras installed at sorting units can easily detect and decode this information and thereby sort the plastic waste more accurately.

Nice way to use Technology for a better planet