Counting carbon has become a quagmire for consumers trying to understand quite how much impact their travel or work is having on the environment. Quite what the carbon footprint of a business is can be a bit of a moving target and some companies are able to hide their carbon in all sorts of places.
Mike Berners-Lee is a leading expert in carbon footprinting and has spent the last decade trying to convince people and companies to accurately count and offset their carbon footprints. He is the director and principal consultant at Small World Consulting and author of How Bad are Bananas? The Carbon Footprint of Everything. He's also the author of There is No Planet B: A net-zero handbook for business and policymakers which came out in 2019.
He's just released a revised version of that book which takes the last two years into account and looks at the environmental impacts of the Covid 19 pandemic.