Climate projects distinguish between avoidance, reduction, and removal based on impact activities. Avoidance prevents emissions, often through nature conservation or sustainable technologies. When integrated into a company's value chain, like using sustainable aviation fuels, it becomes a reduction effort. Removal extracts CO2e from the atmosphere, traditionally through reforestation. Technological solutions like direct air capture, biochar production, and enhanced rock weathering represent a growing field in global climate action against greenhouse gas emissions.