How Green is Your Green Electricity Tariff Really? with Killian Daly, Energy Tag
Like most, I thought Scope 2 emissions were the easiest to calculate - take your power bill and multiply the number of units by the...
The Scope 2 elephant trap
Jun 18, 2026
As the decarbonisation of the UK electricity grid continues apace, the new Government GHG conversion factor for a unit of electricity has fallen by a...
Scope 3: The problem(s) with using ‘spend-based’ emissions data
May 21, 2025
Last week, I saw a presentation by Newcastle upon Tyne Hospitals Trust on their supply chain carbon footprint (usually the bulk of 'Scope 3' or...
Scope 3 needs breaking up
Feb 13, 2025
If you're reading this, you probably know the definitions of Scope 1, 2 and 3 emissions set out in the Greenhouse Gas Protocol, aka the...
There’s nothing worse than environmentalists encouraging climate inaction
Nov 21, 2023
One of my bugbears is the constant attempts to shift the 'blame' for climate change to someone else - whether it is China, Big Business...
How frequently should you collect Sustainability data?
Apr 12, 2022
We live in an age of realtime data. Many of us wear a smartwatch counting our steps (forward and upward), monitoring our heart rate and...
Whose carbon is it anyway?
Jan 12, 2022
I've mentioned before that over the summer I got into a Twitter row over how much the individual should take responsibility for their carbon footprint....
Who is to blame for climate change?
Aug 23, 2021
During my holiday, the Guardian published an article on what individuals could do to tackle the climate crisis. Almost every point was to lobby somebody...
Watch out for this new form of greenwash!
Mar 5, 2021
A couple of times recently, I've seen organisations show a graph of their carbon footprint over time, showing a nice steady downward trend. A closer...
Looks like carbon offshoring is starting to be taken seriously…
Jul 15, 2019
For decades I've been banging away that the whole "the UK only emits 2% of global emissions" is nonsense. Yes, 2% may actually be released...