Masashi Kitazawa, an associate professor in the Department of Environmental Occupational Health at the University of California, discusses various aspects of his personal journey, research, and concerns related to environmental health and climate change. He describes his interest in science from a young age, particularly in the field of chemistry, and how his fascination with the effects of chemicals on the body led him to toxicology. He reflects on challenges he faced during his academic journey, including periods of burnout, and how he stayed motivated by considering the potential positive impact of his work on human health. Masashi Kitazawa's current research focuses on the connection between air pollution and Alzheimer's disease. He explains how his research involves using animal models and cell cultures to study the mechanisms through which air pollution may contribute to the onset and progression of Alzheimer's disease. He emphasizes the importance of critical thinking and not relying solely on single sources of information in the field of science. He suggests that educators should encourage students to think critically, consider multiple sources, and understand the complexities of scientific findings. Regarding climate change, Kitazawa suggests that while there is coordination between increasing carbon dioxide levels and rising temperatures, more research is needed to establish direct causation. He expresses hope that the collective efforts of humanity will lead to solutions for climate-related challenges. In terms of his work's impact on climate solutions, Kitazawa believes that raising awareness about the health risks associated with environmental pollutants like air pollution can drive public and policy action to mitigate these issues. He emphasizes the importance of informed public engagement and collective efforts to address the challenges posed by the changing climate. Lastly, when asked about worries related to the climate crisis, Kitazawa expresses concern about the health implications of climate change, particularly extreme heat and its potential to increase the risk of certain diseases. He highlights the importance of addressing these health risks in addition to broader climate-related challenges.