This handbook provides a systematic and comprehensive review of existing offset programs. It looks at what offsets are, how offset mechanisms function, and the successes and pitfalls they have encountered. Coverage includes offset programs across the full swath of applications including mandatory and voluntary systems, government regulated and private markets, carbon offset funds, and accounting and reporting protocols such as the WBCSD/WRI GHG Protocol and ISO 14064. Learning from the successes and failures of these programs will be essential to crafting effective climate policy. This is an essential reference for all regulators, policy makers, business leaders and NGOs concerned with the design and operation of GHG offset programs world-wide. Published with SEI