You’re certainly correct about consumerism and consumption being a core problem, at least environmentally. However, the countries I mentioned consume much less than France, the UK, or the US.
Also, the original article focuses on four factors. These countries (barring, as I mentioned, Canada) are environmentally sustainable, or moving towards it. Political sustainability is also important, and this is something that they all have (with exception to Switzerland, due to its unusually heavy direct democracy.) Social sustainability is very good too, with these countries hailed by those outside and in. Denmark, for example, is the happiest country in the world. And economically, these are future-proofed countries, due to Iceland’s reforms, Switzerland’s gold standard in many sectors, Norway’s SWF, and Denmark’s and Switzerland’s, well, very good economies.
These are, by and large, sustainable nations. So many governments around the world are attempting to copy their models, or at least parts of them.
The UK, for example, turned to Scandinavia for an education model. It turned to Canada to reboot its economy, and appointed the governor of the RBC to the governorship of the BofE. It has turned to Switzerland’s corporation tax approach to further improve the economy. And it is taking steps to, like Iceland and Denmark, invest in renewables, as well as other environmental schemes.