One of the main objectives of ecological research is to enhance our understanding of the processes that lead to species extinction. A potentially crucial extinction pattern is the dependence of contemporary biodiversity dynamics on past climates, also known as “climate legacy”. However, the general impact of climate legacy on extinction dynamics is unknown. Here, we conduct a systematic review to summarize the effect of climate legacies on extinction dynamics. We find that few works studying the relationship between extinction dynamics and climate include the potential impact of climate legacies (10%), with even fewer studies reaching beyond merely discussing them (3%). Among the studies that quantified climate legacies, six out of seven reported an improved fit of models to extinction dynamics, with most also describing substantial impacts of legacy effects on extinction risk. These include an increase in extinction risk of up to 40% when temperature changes add to a long-term trend in the same direction, as well as substantial effects on species’ adaptations, population dynamics and juvenile recruitment. Various ecological processes have been identified in the literature as potential ways in which climate legacies could affect the vulnerability of modern ecosystems to anthropogenic climate change, including niche conservatism, physiological thresholds, time lags and cascading effects. Overall, we find high agreement that climate legacy is a crucial process shaping extinction dynamics. Incorporating climate legacies in biodiversity assessments could be a key step toward a better understanding of the ecological consequences arising from climate change.

Large datasets, combined with modeling techniques, provide a quantitative way to estimate when known archaeological sites will be impacted by climatological changes. With over 4,000 archaeological sites recorded on the coast of Georgia, USA, the state provides an ideal opportunity to compare methods. Here, we compare the popular passive “bathtub” modeling with the dynamic Sea Level Affecting Marshes Model (SLAMM) combined with the Marshes Equilibrium Model (MEM). The goal of this effort is to evaluate prior modeling and test the benefits of more detailed ecological modeling in assessing site loss. Our findings indicate that although rough counts of archaeological sites destroyed by sea-level rise (SLR) are similar in all approaches, using the latter two methods provides critical information needed in prioritizing site studies and documentation before irrevocable damages occur. Our results indicate that within the next 80 years, approximately 40% of Georgia's coastal sites will undergo a loss of archaeological context due to wetlands shifting from dry ecological zones to transitional marshlands or submerged estuaries and swamps.

Although individuals are exposed to a variety of pro-environmental influences in childhood, it is unclear which has the biggest impact on adult beliefs and behaviour. The aim of the current study therefore examined how formal sustainability education and childhood caregiver pro-environmental motivations, beliefs and behaviour, influence motivations and behaviours in adulthood. An Australian adult sample (n = 230) completed a survey measuring pro-environmental motivation, anthropogenic climate change beliefs and pro-environmental behaviour. Recollections of childhood caregivers’ anthropogenic climate change beliefs and pro-environmental behaviours, and formal completion of sustainability education were obtained. Hierarchical multiple regression analysis found childhood caregiver pro-environmental behaviour significantly and uniquely predicted pro-environmental behaviour. Moderation analysis found no influence from formal sustainability education on this relationship. Caregiver and individual climate change belief were associated, but caregiver belief was not associated with pro-environmental motivation. No differences in adult pro-environmental behaviour were noted when considering childhood sustainability education. Results suggest transmission of anthropogenic climate change belief and pro-environmental behaviour occurs from childhood caregivers. Comparatively, formal childhood sustainability education was not significant in establishing ongoing pro-environmental behaviour patterns. This research adds to limited existing literature demonstrating caregiver impact on sustained pro-environmental behaviour and provides possible future direction for promoting sustainable behaviour.