Abstract
With the increased use of nitrogen and phosphorus fertilizers and global warming, water eutrophication is causing irreversible damage to ecosystems. This article explores the relationship between climate variables and the growth of algae in lakes in North America and Europe and used chlorophyll-a as the indicator for Algae. The article also highlights that the algae in North America have better resistance to low temperatures than algae in Europe. Due to the distribution of sample lakes in Europe, algae populations have different adaptations to the local environment. The dependence of oligotrophic lakes on precipitation and the susceptibility of eutrophic lakes to environmental factors. The Summer Heat-Moisture Index is positively related to response variables, indicating that warmer and drier conditions during summer can create a more suitable environment for algae growth. However, the correlation between precipitation and chlorophyll growth rate may not always be instantaneous and may be delayed. With global warming, the ecosystem of lakes at high latitudes will be more sensitive and dynamic, which may face more risks, especially under arctic amplification. Overall, the study shows the importance of understanding the interactions between local factors and climate variables on the growth of chlorophyll-a to manage and maintain the health of aquatic ecosystems under challenges of future global warming. The main limitation may be the distribution of sample data for various nutrients needs to be considered. Moreover, further research is required to investigate the mechanism of different weather factors with algae growth.