How many years you reuse a fake holiday tree matters. So does what happens to a live tree when you’ve packed up the ornaments.

A central question remains unresolved in the draft treaty: Is plastic pollution basically a waste management problem, or can it be solved only with a cap on production?

Media coverage of the dangers of plastic pollution can distract from what is actually needed, says an author.

A team of scientists has developed a method for creating a new class of plastic materials that are potentially more recyclable than single-use plastics.

Corporate supply chains are riddled with high, uncounted emissions, as Lego discovered. New regulations mean more companies will face tough, sometimes surprising, choices.

The new ban will raise awareness about the plastic crisis. But failing to provide viable alternatives may simply displace the problem, instead of addressing it

Sea glass, while an eye-catching treasure and a multimillion-dollar industry, exists because of decades of improper waste management.

The UK needs to fix its recycling system for a more sustainable future.