1) There are a few papers, essays + one study so far I am aware of. Links below as part of thread. It's a good topic to debate but impossible to resolve empirically given levels of analysis problems etc. Where you end up on the issue will be matter of temperament + worldview. https://twitter.com/MaibachEd/status/1341404645462302723
2) The most persuasive arguments I have read flow from this classic article by Craig Calhoun on the dangers of emergency narratives generally: https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1755-618X.2004.tb00783.x?casa_token=qjocKVWF1e0AAAAA:w2ecZu9EwMAbn3XeZ32CYOxwfd00vz9vEdg2Vhn4HGo-ECWkjnbit22cFpmJvTuJ58f2Z3a9PYUmjQ
3) Mike Hulme draws on Calhoun to argue that #climateemergency framing invites radical, dangerous approaches like geoengineering + authoritarianism. #scicomm https://www.amazon.com/Can-Science-Fix-Climate-Change/dp/0745682065
4) See also a similar argument in this paper. https://journals.sagepub.com/doi/full/10.1177/2053019615579922?casa_token=nzWmbnXxM4YAAAAA:Uhwy0yZyoeKJ-z_hTYLgvuo_rsjXtJP1SxxWjPzd_hjnJmvnZBd_k8BUTT0JAJPrjUM2GY-SW3Y
5) Mike Hulme has further developed his critique of climate emergency framing in this paper: https://www.nature.com/articles/s41558-019-0543-4.pdf?origin=ppub
7) There is also this exchange of papers at WIRE Climate Change which Hulme commissioned + his editorial: https://onlinelibrary.wiley.com/doi/full/10.1002/wcc.619
8) Related to climate emergency framing -- there is this paper along with several others that question the general use of the metaphor of "war mobilization" as favored by @billmckibben et al + or "climate war" by @MichaelEMann etc http://sro.sussex.ac.uk/id/eprint/66364/
9) I will add more papers to this thread as I think of them or come across them. It is an important discussion + debate to have. I have CCed @WarrenPearce who likely has additional thoughts + literature to add.