臺灣淨零排放與都市高溫挑戰--氣溫降低與熱舒適提升之調適與實踐

Outdoor Thermal Comfort and the Urban Mitigation Regarding Taiwan Net-Zero Emission, Living Quality, and Sustainability Promotion

面對全球增溫挑戰，都市高溫化造成的影響不可忽視，高溫衝擊不只影響民眾健康、生活品質，還可能增加民眾的能源負擔，加劇社會階層差異的惡性循環；為了將未來的升溫情境維持在攝氏1.5度之內，臺灣響應淨零排放國際趨勢，規劃「2050淨零排放路徑」，期能大幅度削減溫室氣體排放，其中高溫調適與淨零排放目標中的「淨零綠生活」以及「公正轉型」兩項關鍵戰略息息相關，以臺北都會密集區為例，整合都市高溫相關圖資以及資料，呈現都市地理環境、高溫分布、建築結構、風場環域、熱舒適等項的分布，了解高溫脆弱度較高區域的蓄熱因素，針對都市高溫下的都市規劃及建築規範，探討如何藉由落實高溫調適策略，推廣節能知識以及建築營運碳排放減量等。結合能源使用資料與公正轉型原則，探討推動淨零轉型過程，透過都市降溫，增進共有共享的戶外空間熱舒適，維護大眾前往戶外的意願以及平等權利。高溫調適可視為推動淨零排放的重要指標之一，新加坡為都市降溫已制訂出具體的管制門檻，並透過政策鼓勵、立法管制、擴大預算編列加速推動，現臺灣已有明確的淨零轉型之路，期能儘早建置具體的都市高溫因應策略法規。

 

To maintain future temperature rise within 1.5 degrees, Taiwan has followed the international net-zero emissions trend and planned a "2050 Net-Zero Emissions Path", which is expected to significantly reduce greenhouse gas emissions. Facing the increasingly severe urban high temperature problem, high temperature adjustment is closely related to the two key strategies of "Net Zero Green Living" and "Just Transition" in the 2050 Net-Zero Emissions Path goals. Taking the Taipei metropolitan area as an example, this article integrates urban high temperature-related graphics and data to present urban high temperature distribution, building structure, wind field environment, thermal comfort, etc., aiming at urban planning and building regulations under urban high temperature, and discusses how to promote energy-saving knowledge and reduce carbon emissions in building operations by implementing high-temperature adaptation strategies. Urban heat mitigation can be seen as closely related to net-zero emissions. Taiwan now has a clear path to net-zero transition and it is strongly suggested to form solid urban high temperature response strategies and regulations.