This paper, "Defining and Classifying Ecosystem Services for Decision Making," by Brendan Fisher, Robert Costanza, R. Kerry Turner, and Paul Morling, aims to provide a clear and consistent definition of ecosystem services and several classification schemes. The authors argue that there is no single, universally applicable classification system for ecosystem services, as the appropriate classification depends on both the characteristics of the ecosystem and the decision-making context. They propose a broad and operational definition of ecosystem services as aspects of ecosystems utilized to produce human well-being, emphasizing that these services can be ecological phenomena or directly consumed components. The paper discusses various characteristics of ecosystems and ecosystem services, such as public-private good aspects, spatial and temporal dynamics, joint production, complexity, and benefit dependence. These characteristics are crucial for developing classification schemes tailored to different decision contexts, such as understanding and education, valuation, landscape management, and distribution and equity in human welfare. The authors conclude that a 'fit-for-purpose' approach is essential, considering both ecological and social contexts to ensure meaningful comparisons and effective decision-making.This paper, "Defining and Classifying Ecosystem Services for Decision Making," by Brendan Fisher, Robert Costanza, R. Kerry Turner, and Paul Morling, aims to provide a clear and consistent definition of ecosystem services and several classification schemes. The authors argue that there is no single, universally applicable classification system for ecosystem services, as the appropriate classification depends on both the characteristics of the ecosystem and the decision-making context. They propose a broad and operational definition of ecosystem services as aspects of ecosystems utilized to produce human well-being, emphasizing that these services can be ecological phenomena or directly consumed components. The paper discusses various characteristics of ecosystems and ecosystem services, such as public-private good aspects, spatial and temporal dynamics, joint production, complexity, and benefit dependence. These characteristics are crucial for developing classification schemes tailored to different decision contexts, such as understanding and education, valuation, landscape management, and distribution and equity in human welfare. The authors conclude that a 'fit-for-purpose' approach is essential, considering both ecological and social contexts to ensure meaningful comparisons and effective decision-making.