Core Viewpoint - The article highlights the growing significance of bio-based ethylene in the chemical industry, emphasizing its role in sustainable development and the increasing production capacities of major companies like Braskem and Sinopec [1][2]. Group 1: Company Developments - Braskem celebrates the 15th anniversary of its bio-based polyethylene brand "I'm green™" and announces an increase in production capacity at its bio-ethylene plant in Triunfo, Brazil, from 260,000 tons to 275,000 tons [1]. - Since the launch of its bio-based PE in 2010, Braskem has produced over 1.2 million tons of bio-based PE and has invested $87 million to expand its bio-ethylene plant capacity from 200,000 tons to 260,000 tons in 2023 [2]. - Sinopec has successfully launched its first bio-based polyolefin product in China, with an initial production of 2,500 tons from its bio-based polyolefin project that started in October 2023 [3]. Group 2: Industry Trends - Bio-based ethylene is becoming a focal point for major chemical companies like Braskem, BASF, and New Energy Blue, driven by the trend towards low-carbon sustainability [2]. - The synthesis technology routes for bio-based ethylene include fermentation, thermochemical conversion, enzymatic catalysis, and microbial synthesis, with various companies employing different methods [4]. - The price of bio-ethanol, primarily produced from non-food biomass, is crucial for the competitiveness of bio-based ethylene in the domestic market, with estimates suggesting a target price of 4,000 yuan per ton or lower [5]. Group 3: Technological Insights - The main synthesis route for bio-based ethylene is ethanol dehydration, which is influenced by the cost of bio-ethanol [5]. - Different technological routes for bio-based ethylene production have varying levels of maturity and advantages, such as sugar fermentation being highly mature but reliant on food crops, while cellulose fermentation shows potential for reduced resource competition [6].

科技的快速发展正在改变着人们的生活方式和生活空间，重塑人与社会、人与环境的关系，而城市作为聚合技术力量、汇聚居民的主要场域，正面临从发展 逻辑到空间形态的巨大转变。 38个入围年度大奖的项目分别来自于12个城市：北京、深圳、成都、上海、无锡、杭州、福州、台州、绍兴、大连、洛阳、镇江。其中，来自北京和深圳的 入围项目最多，各有10个，其次是成都5个，无锡4个，上海2个，其余城市各有1个。 21个获得年度大奖的项目分别来自于北京、上海、深圳、成都、苏州、大连、镇江、绍兴、台州、洛阳等10个城市。其中，来自深圳的项目数量最多，为6 个；其次是北京5个，上海、成都各2个，其余6城各1个项目获奖。 中国工程院院士、世界规划教育组织（WUPEN）主席、未来城市大奖2024评审委员会主席吴志强院士表示，我们正处在一个充满挑战和机遇的时代，人工 智能、大数据、物联网等新兴技术给我们的城市注入了新的活力，未来城市不仅仅是技术的集成空间，更是人与自然，人与社会，历史与未来的和谐共生 体。本届未来城市大奖入围和获奖项目覆盖了智慧城市、低碳可持续、数字消费、城市更新、新质生产力园区等多个领域，体现了中国城市在科技创新和可 持续发展中 ...

Core Viewpoint - The article discusses the transformation of urban development in China, emphasizing the shift from constructing super-tall buildings to focusing on attracting talent and industries, reflecting a significant change in urban development logic in the "Uka Era" [2][5][10]. Group 1: Urban Development Trends - The planning and construction of the top 20 super-tall buildings in China were all initiated before 2020, with most occurring between 2010 and 2020 [4]. - Post-2020, cities have shifted their focus from building super-tall structures to competing for talent and industries [6][7]. - By the end of 2024, China's urbanization rate is expected to reach approximately 67%, with about 950 million people living in urban areas [8]. Group 2: Urban Challenges and Responsibilities - Cities are seen as "experimental grounds for the future," needing to undergo spatial, relational, and confidence restructuring [9]. - Urban development must respond to the changing needs of different generations, from the 60s to the 00s, as highlighted by experts [11]. Group 3: Future City Awards - The "2024 Future City Awards" will focus on the theme of "Confidence and Cities," aiming to discover new technologies and models that can invigorate urban vitality and boost residents' confidence [16][17]. - The awards received over 160 project submissions from more than 50 cities, with 38 projects shortlisted for various categories, including smart applications and sustainable solutions [16][17].