This lecture will explore the potential causes, both natural and human-induced, of climate change in the context of warming global temperatures and extreme weather patterns. We will contemplate the chemical/physical concepts behind these processes, study phenomena occurring through real-world applications across the globe, and discuss relevant implications for the long-term health of the planet and its inhabitants. Grady Hanrahan is a Professor of Chemistry at California Lutheran University (CLU). He received his Ph.D. in Environmental Analytical Chemistry from the University of Plymouth, England. With experience in directing undergraduate and graduate research, he has taught at California State University, Los Angeles, and CLU. His research interests span instrumentation design and development, chemometrics, computational neural networks, environmental analysis, and the use of swarm intelligence metaheuristics to model complex chemical and biological systems. He has written or co-written numerous peer-reviewed technical papers and is the author or editor of five books detailing the use of chemical separation methods and computational modeling techniques. Fifty and Better was designed to offer university-level courses (no tests, no homework) taught by experts in the field, and to host social engagement activities for individuals age 50 and older. All are welcome to this one-time lecture.