Abstract:

In Baku last November, parties to the COP29 United Nations climate summit failed to put in place enough climate finance to keep global average warming below the 1.5 °C limit established in the 2015 Paris agreement. High-income countries (HICs) agreed only to “take the lead” in directing at least US$300 billion to low- and middle-income countries (LMICs) each year by 2035. Their own contributions were left unspecified and could be drawn from a variety of sources. Meanwhile, the Baku agreement calls on “all actors” to scale up this total financing to at least $1.3 trillion annually. Although these headline numbers seem to be broadly similar to those that were proposed by climate-finance experts (including some of us1) before the COP29 meeting, in reality this fudged scattershot approach falls far short of what’s needed — in terms of timing and quality.

Citation:

Bolton, P., Edenhofer, O., Kleinnijenhuis, A., Rockström, J., & Zettelmeyer, J. (2025), 'Why coalitions of wealthy nations should fund others to decarbonize', Nature, Vol. 639, Issue 8055, pp. 574–576, Springer Science and Business Media LLC, https://doi.org/10.1038/d41586-025-00779-9
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