Reinl, Kaitlin L.Harris, Ted D.North, Rebecca L.Almela, PabloBerger, Stella A.Bizic, MinaBurnet, Sarah H.Grossart, Hans-PeterIbelings, Bastiaan W.Jakobsson, EllinorKnoll, Lesley B.Lafrancois, Brenda M.McElarney, YvonneMorales-Williams, Ana M.Obertegger, UlrikeOgashawara, IgorPaule-Mercado, Ma. CristinaPeierls, Benjamin L.Rusak, James A.Sarkar, SiddharthaSharma, SapnaTrout-Haney, Jessica V.Urrutia-Cordero, PabloVenkiteswaran, Jason J.Wain, Danielle J.Warner, KatelynnWeyhenmeyer, Gesa A.Yokota, Kiyoko2023-04-052023-04-052023-02-17Reinl, K.L., Harris, T.D., North, R.L., Almela, P., Berger, S.A., Bizic, M., Burnet, S.H., Grossart, H., Ibelings, B.W., Jakobsson, E., Knoll, L.B., Lafrancois, B.M., McElarney, Y., Morales‐Williams, A.M., Obertegger, U., Ogashawara, I., Paule‐Mercado, M.C., Peierls, B.L., Rusak, J.A., Sarkar, S., Sharma, S., Trout‐Haney, J.V., Urrutia‐Cordero, P., Venkiteswaran, J.J., Wain, D.J., Warner, K., Weyhenmeyer, G.A. and Yokota, K. (2023) ‘Blooms also like it cold’, Limnology and Oceanography Letters. Wiley. Available at: https://doi.org/10.1002/lol2.10316.2378-2242 (electronic)https://doi.org/10.1002/lol2.10316Publication history: Accepted - 30 January 2023; Published - 17 February 2023.Cyanobacterial blooms have substantial direct and indirect negative impacts on freshwater ecosystems including releasing toxins, blocking light needed by other organisms, and depleting oxygen. There is growing concern over the potential for climate change to promote cyanobacterial blooms, as the positive effects of increasing lake surface temperature on cyanobacterial growth are well documented in the literature; however, there is increasing evidence that cyanobacterial blooms are also being initiated and persisting in relatively cold-water temperatures (< 15°C), including ice-covered conditions. In this work, we provide evidence of freshwater cold-water cyanobacterial blooms, review abiotic drivers and physiological adaptations leading to these blooms, offer a typology of these lesser-studied cold-water cyanobacterial blooms, and discuss their occurrence under changing climate conditions.en© 2023 The Authors. Limnology and Oceanography Letters published by Wiley Periodicals LLC on behalf of Association for the Sciences of Limnology and Oceanography. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.Article