The Role of Green Roofs in Mitigating Urban Heat Islands in Berlin, Germany

Abstract

Urban heat islands (UHIs) pose significant environmental and social challenges for cities, particularly in the context of climate change and rapid urbanization. In Berlin, green roofs have emerged as a sustainable solution to mitigate UHIs, offering benefits such as temperature regulation, stormwater management, and improved air quality. This paper explores the environmental impact of green roofs in Berlin, focusing on their ability to reduce urban temperatures and enhance microclimates. It also examines the city’s policies and incentives that promote green roof adoption, alongside successful local projects. However, challenges such as economic constraints, technical barriers, and public engagement limitations hinder widespread implementation. Comparative perspectives from cities like Singapore, Toronto, and Copenhagen provide insights into overcoming these obstacles. By adopting tailored strategies and learning from global examples, Berlin can optimize its green roof programs to address urban challenges and enhance sustainability.