How to reduce your carbon footprint #GlobalWarning

From cutting down on meat, to contacting your local representatives and investing in clean energy, here are 15 ways to help reduce global carbon emissions

1 Air travel is usually the largest component of the carbon footprint of frequent flyers. A single return flight from London to New York - including the complicated effects on the high atmosphere - contributes to almost a quarter of the average person's annual emissions. The easiest way to make a big difference is to go by train or not take as many flights.

2 The second most important lifestyle change is to eat less meat, with particular emphasis on meals containing beef and lamb. Cow and sheep emit large quantities of methane, a powerful global warming gas. A vegan diet might make as much as a 20% difference to your overall carbon impact but simply cutting out beef will deliver a significant benefit on its own.