https://www.theguardian.com/environment/2017/jan/19/how-to-reduce-carbon-footprint
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.