United Nations member states are set to meet this month in Nairobi to draft the blueprint for a global plastics treaty, a deal that could see countries agree for the first time to reduce the amount of single-use plastics they produce and use.

It's being touted as the most important environmental pact since the 2015 Paris Agreement on climate change.

A global explosion of disposable plastic, which is made from oil and gas, is increasing carbon emissions, despoiling the world's oceans, harming wildlife and contaminating the food chain. More than 50 countries, including all 27 members of the European Union, are calling for the pact to include measures targeting plastic production.