Introduction to Ecosystem Experiments and Geoengineering

Human activity is changing the planet at an unprecedented rate, raising critical questions about how our ecosystems will respond and whether we can actively engineer solutions to climate change. Understanding these complex planetary systems requires looking at real-world scientific interventions. This text-based course guides you through the foundational science of ecological experimentation and the controversial field of geoengineering. You will start by mastering key terminology, learning how natural cycles operate, and discovering how scientists design large-scale field experiments to study environmental impact. What you'll learn: Understand the principles of ecosystem-scale experiments and how researchers manipulate natural habitats; Analyze the classic Hubbard Brook Experimental Forest studies to see how deforestation impacts nutrient cycling; Evaluate the scientific theory, mechanisms, and risks behind marine geoengineering and ocean fertilization; Explore solar radiation management and carbon dioxide removal strategies from an engineering perspective; Assess the ethical, regulatory, and environmental governance challenges of climate intervention. The course begins with core ecological concepts and watershed dynamics before moving into the practical design of field experiments and a detailed analysis of modern geoengineering proposals. This course is designed for beginners, environmental enthusiasts, and students seeking a clear, structured introduction to Earth systems science with no prior engineering background required. Read through the lessons, engage with the case studies, and build a solid foundation in environmental intervention today.