Every little recycled yoghurt pot helps – but how best can you help save the planet?

A new study has crunched the numbers on efforts to fight climate change, from skipping holidays to ditching our cars. Here's a guide to the (not always) easy ways to be green

It's easy to feel powerless in the face of new coal mines and shrinking rainforests in distant countries, but we also know that being green starts at home. We do what we can, right? But what really helps, and what is a drop in a warming ocean? A study by the Universities of Lund, Sweden, and British Columbia, Canada, has crunched the numbers and the results are intriguing. Bottom line: every little recycled yoghurt pot helps, but the environmental impacts of our actions vary massively. Here's a cut-out-and-keep (and then, you know, recycle) guide to a greener you.