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Date Time HKU Engineering scholar reveals in first global study hugely uneven urbanization among large cities Distribution of large cities in the world with greening built-up area (BUA), and greening built-up areas in Yangtze River Delta (YRD) city cluster The world has experienced dramatic urbanization in recent decades. According to the latest report from the United Nations (UN), the global population in 2018 was 7.6 billion and the urban population was 4.2 billion. By 2050, the global population is expected to soar to 9.7 billion, with 68% of the population living in urban areas. (Note 1)...

 E-Mail IMAGE: Distribution of large cities in the world with greening built-up area (BUA), and greening built-up areas in Yangtze River Delta (YRD) city cluster view more  Credit: The University of Hong Kong The world has experienced dramatic urbanization in recent decades. According to the latest report from the United Nations (UN), the global population in 2018 was 7.6 billion and the urban population was 4.2 billion. By 2050, the global population is expected to soar to 9.7 billion, with 68% of the population living in urban areas. (Note 1) In the first-ever study on the charac...

World Heritage and Biodiversity We are pleased to bring you this issue on biodiversity and World Heritage sites, focusing on some of the properties most vital to the future of our planet. These articles were prepared in anticipation of the UN Biodiversity Conference (COP 15) originally planned for October 2020 in Kunming, China, and the designation of a “biodiversity super year”. Many far-reaching decisions concerning the preservation of biodiversity were meant to be taken in 2020. But due to the COVID-19 pandemic, a number of international meetings including COP 15 could not take p...