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The study presented in this video evaluates data from observational towers, satellite pictures and other published data to compare the impact of land-cover change and land management change on climate. The results show that land management change within the same vegetation (e.g., harvesting a formerly untouched forest) has effects on climate change that are similarly large as effects of land-cover change (e.g., changing forests into pasture). Thus, JULIA PONGRATZ explains, earth system models which are used to estimate human impact on climate should include changes in land management.