Impacts of Human Activities on the Marine and Climate Environment and Measures for Their Protection

Over the past few decades, human activities have had a significant impact on the global climate and marine systems, with industrialization exacerbating the greenhouse effect and accelerating the degradation of the marine environment. In particular, rising temperatures, changes in atmospheric composition and pollution emissions are already polluting terrestrial and marine ecosystems. Current research has focused on the role of greenhouse gas emissions as a driver of climate warming, revealing the impacts of climate change on precipitation patterns, biodiversity, and marine ecosystems. At the same time, a few studies have begun to focus on the moderating effects of nuclear contamination, changes in microbial structure and human governance measures on ecosystems. However, the ecological stability of marine microorganisms, the mechanisms of long-term spread of nuclear contamination and their specific impacts on biological chains are also currently being explored. This paper focuses on how human activities affect global climate and marine ecosystems through greenhouse gas emissions, chemical pollution, and physical disturbances, explores changes in the structure and function of marine organisms because of different environmental stressors, and assesses the effectiveness of the implementation of existing marine protected areas. This study contributes to a deeper understanding of the interactions between human activities and marine ecology and provides a reference for the future development of more scientific and effective ecological protection policies in the context of global warming.