Sequestered means to separate or isolate something, often referring to a process in which certain assets are set aside and kept separate from other funds. This can be done for various reasons such as legal proceedings, debt repayment, or financial planning. In the context of climate change, sequestration refers to the process by which carbon dioxide is removed from the atmosphere and stored in a way that prevents it from contributing to global warming. This can be achieved through natural processes such as photosynthesis or human intervention such as carbon capture and storage technologies.