This document discusses various methods of carbon sequestration including biological, chemical, and physical processes. Biological processes involve carbon storage in ecosystems like peatlands, forests, wetlands, agriculture, and oceans. Chemical processes include mineral carbonation, electrochemical methods, chemical scrubbers, and industrial uses. Physical processes involve storing carbon in biomass, oceans, and geological formations. The document also notes that rapid economic growth has increased fossil fuel usage and carbon dioxide emissions, contributing to climate change. Carbon sequestration aims to remove carbon dioxide from the atmosphere to mitigate global warming.