Discussion about this post

User's avatar
sean moran's avatar

To quote my dictionary: "The concept of net zero was originally closely related to the older one of ‘carbon neutrality’, a general idea that the carbon dioxide releases associated with an activity could be offset or undone by undertaking (or paying others to undertake on your behalf) carbon-absorbing activities. Some still use this definition, but other seek to take net zero further, taking non-carbon greenhouse gases into consideration. Some go further still, rejecting science-based approaches entirely.

On the other hand, one of my panel of reviewers suggested net zero was no more than ‘a

marketing-related calculation arrived at by performing a very naive mass balance over a small,

arbitrarily defined part of a much larger system’, or to put it another way, greenwash.

However far people go, net zero remains controversial amongst some environmentalists as it is

perceived as not going far enough, whilst some trade unions have sought to harness the idea to

their own political agendas by including for example a requirement for a ‘just transition’, favoring

their members in the interim.

Perhaps a more reasonable and less self-interested criticism of net zero is it can be rather like net

present value, kicking the can of reining in carbon emissions into the future, whilst we continue

business as usual in the present.

Whatever your view of these issues, it is clear that net zero can mean a range of things, most

notably in respect of what should add up to zero, the period over which the calculation is done,

and whether or not to include the various unrelated issues which stakeholders may seek to

smuggle in alongside the actual reduction in greenhouse gas emissions. In this way it is rather

like sustainability."

Expand full comment
Andrew Herbert's avatar

Hi, I started to reply in LinkedIn but I think it is probably better to continue here.

Thanks for the link. I've read the article and it raises a lot of questions but the most important one is what is the "plan' you referred to in your reply on LinkedIn?

Is it the Sixth Carbon Budget from the CCC referred to in the McKinsey report?

I looked at the CCC site and there were three or possibly four multi-megabyte documents to download. I can almost guess from the cover graphics and the titles that they will be a hard and possibly unsatisfactory read. Maybe you can point me to a summary suitable for engineers. Maybe you have done one yourself.

Expand full comment
10 more comments...

No posts