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In this episode of Talking Trees, we examine the life cycle assessment (LCA) of urban trees, analyzing their environmental impact from planting to removal. LCA is a crucial tool in urban forestry, helping policymakers and arborists optimize tree management for maximum ecological benefits.

We explore key factors in tree life cycle studies, including:

• Carbon sequestration – How urban trees store CO₂ and contribute to climate change mitigation.
• Energy savings – The role of tree canopies in reducing urban heat and lowering energy demand.
• Tree mortality and replacement – Assessing the longevity of urban trees and strategies to improve survival rates.
• Environmental costs – Evaluating water use, maintenance needs, and disposal at the end of a tree’s life.

Recent research highlights how species selection, maintenance practices, and urban planning influence the long-term sustainability of tree planting initiatives. We discuss findings from case studies in Los Angeles and Mediterranean cities, where LCA has been used to measure the real-world benefits of urban forestry projects.

Join us as we dive into the science behind sustainable urban tree management, ensuring trees continue to provide vital ecosystem services in cities worldwide.

Background information:

• Kianmehr et al. 2024. A new approach to monitor the life cycle of urban street tree canopies.pdf
• Muscas et al. 2024. Life cycle assessment of common urban trees - The environmental performance of three Mediterranean cities.pdf

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