For World Environment Day, Will McCallum, Head of Oceans at Greenpeace, shares 12 surprisingly easy swaps that will help make a difference towards going plastic free We are all aware, now more than ever, that plastic is a very serious threat to the sustainability of our planet and environment. It’s unbelievable to think that of the 2.5 billion disposable coffee cups that British people use each year, only 0.25% of these are recycled, and that the equivalent of one rubbish…