I haven't actually read the Dasgupta review, only that first link you shared. Overall I think EAs probably don't disagree that much with what Dasgupta is saying but probably focus on other things due to neglectedness. Even if economics doesn't account for nature enough, there are still loads of people shouting about the the negative effect we have on nature, and this review was actually commissioned by the UK Government so they are clearly aware of the problem. It's also hardly news that GDP isn't a perfect measure. Compare this to things like biorisk and risk from unaligned AI which important people generally don't think about.
Otherwise a few things jumped out to me from that first link:
Biological diversity is, in fact, declining faster now than at any time in our history. Since 1970, there has been on average almost a 70% drop in the populations of mammals, birds, fish, reptiles, and amphibians. Around one million animal and plant species – almost a quarter of the global total – are believed to be threatened with extinction.
Beyond its intrinsic – and incalculable – worth, biodiversity provides fundamental natural “dividends” that nourish and protect us: from basic sustenance through fish stocks or insects that pollinate crops, to soil regeneration, and water and flooding regulation. Not to mention the cultural and spiritual values that enrich our lives.
Dasgupta doesn't appear to have factored in animal welfare. Fish "sustaining" us probably isn't a great thing (unless perhaps some people literally don't have any other options) and reduction in wild animal populations could actually be good if they live net negative lives (which is quite possible).
The review also refers to 'intrinsic' value of biodiversity. I'd imagine EAs mostly reject this thinking biodiversity only has instrumental value.
Thank you for raising this though, I'm hoping to read the report (or maybe a good summary!) and it's possible that the EA community should too. If natural capital is indeed important in sustaining economic development then it is an important consideration from a long-term perspective.
I think there may be a bit of a disconnect between what I meant and how it was received, perhaps magnified by the fact that I was only giving my skim-derived impressions. First, I fully agree with jackmalde's point that GDP isn't a perfect measure, but partially reflecting a comment from your second paragraph, I presume that a lot of economists recognize that measures like GDP are not perfect (in fact, at least 2 if not all 3 of the econ professors I've had have explicitly said something along those lines).
Second, based on the first paragraph of the Cambridge article ("Nature is a “blind spot” in economics") it seemed like the implication was that 1) economists have massively ignored this, and 2) adding consideration of "nature" would be model-shattering. When the claim is simply "nature is a factor" (among multiple others), I think that's probably reasonable.
Third, I should clarify what I mean about my skepticism: I am not the slightest bit skeptical that economic models could be improved in general. However, by default I am skeptical towards any specific claim of widespread blindness among economists, because I think that most of these claims will be wrong -- i.e., I have a low outside view/base rate for each specific claim, especially with regards to the questions I mentioned in my original answer/comment.
Building on that, I don't want to over-articulate my thought process since it was largely just my initial, informal thoughts, but: There may be good evidence to back up Partha's claim, it just seems like something that falls within a category of "Things that, if true, would be much more widely recognized [by economists] / would not have to be presented as some major 'blind spot.'" I don't claim that this heuristic is good for someone whose work/research relates to this (i.e., those kinds of people should do more research than initial impressions), but as someone who is not in economics I think it's more effective to have that kind of skepticism as opposed to treating every economic idea of the day/hour as equally legitimate.
Lastly, I'll admit that I may have been judging it a bit too hastily as a result of its similarity to some of the discourse I've seen from nature-as-an-inherent-value environmentalists. If he is trying to put forward a way to measure the (extrinsic) impact of ecosystems on human wellbeing in a way not measured by other standards of wellbeing (e.g., pollution's effects on health indicators, timber's and fish stocks' ability to provide consumption value, insect pollination's effects on agricultural productivity), that might be interesting, it's just that a lot of the initial examples presented felt like they could have been examples of double counting (see previous parenthetical). This is an important point that helps tie together some of the previous issues.