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].

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].