An increasing number of people are changing their way of life to make a contribution to global climate protection. Only when greenhouse gases can no longer be avoided and reduced, offsetting is the last step for an environmental-friendly footprint. This guide summarises the most important aspects in a concise form to be taken into account in voluntary offsetting. The guide will also help you understand how voluntary offsetting of greenhouse gas emissions works in climate protection projects and explains the most common project types and the terminology used.