Rated 3.5 of 5.
Level of importance:
Rated 4 of 5.
Level of validity:
Rated 3 of 5.
Level of completeness:
Rated 4 of 5.
Level of comprehensibility:
Rated 3 of 5.
|ScienceOpen disciplines:||Environmental change, Environmental management, Policy & Planning, Geography|
|Keywords:||Travel, COP, Climate Change, Climate Justice, Carbon offsetting, Climate, Carbon footprint, Carbon footprint, Climate Change, Climate Justice, COP, Carbon offsetting, Travel|
This is an interesting article that compares the carbon footprint of various options for travel to the upcoming COP in Egypt. The article is timely, highly relevant and of importance in providing an evidence base to support decision making and counteract greenwashing. I would recommend a few changes to the article before it is finalised. Comments and suggestions are provided below.
My main comment is that the structure of the article is a bit unusual in that it does not follow the standard scientific format of introduction – methods – results – discussion – conclusions. While the article loosely follows this layout, there is no dedicated methodology section. Information on the methods is given in an appendix and in places throughout the main text, but I found it a bit disjointed, with queries often occurring that were then answered later in the text. I would recommend preparing a dedicated methods section to appear after the introduction and to contain relevant information relating to the assumptions, boundaries and methods. If the authors decide to keep the appendix, then I would still recommend a dedicated methods section that gives an overview of the steps and assumptions, and that points clearly to the appendix. An algorithm or flow chart showing the steps and/or a diagram showing the boundaries of the analysis would be a useful addition.
The other main comment I have is regarding the mention of climate justice and related issues. The abstract infers that the principles of climate justice were incorporated into the carbon footprint calculator, but I’m not sure that this has been done. The conclusions section also raises the importance of supporting sustainable development and promoting equity and climate justice, but this hasn’t really been addressed in the main paper. Due to the stated importance, I would suggest expanding on the topic in the main paper. The topic is outside my main area of research, but as a suggestion you could look at this work which I undertook with colleagues on the principle of justice in the renewable energy area: https://doi.org/10.1016/j.jclepro.2021.129280. It might give you some ideas.
A few minor comments are below:
Overall, this was a very interesting article and I would be keen to see an updated version.