“…Empirical evidence exists that these anomalies will increase with climate change, albeit more for heat waves (Timmermann et al, 1999;Easterling et al, 2000) than cold waves (but see Wang et al, 2010;Adriaan & Fitchett, 2021). Several empirical studies have, nevertheless, shown that low temperatures can affect species population phenology and fitness (Angilleta, 2009;Denlinger & Lee, 2010;Ma et al, 2017;Govindan et al, 2020), and are a major constraint to organismal function and ecological services through limiting insect activity (Denlinger & Lee, 2010). Given the historical, current, and projected climate change trajectories associated with extreme events (see Kodra et al, 2011;Jury, 2013;LTAS, 2013;Peings et al, 2013;Harnik et al, 2016;Kim & Lee, 2019), although biased toward increases in mean temperatures, low-temperature events remain a critical concern because they are likely to increase in frequency or duration concurrent with increasing mean temperature (see e.g.…”