Core Insights - The article highlights the contrasting approaches of Beijing and Delhi in tackling air pollution, with Beijing achieving significant improvements through coordinated reforms while Delhi struggles with fragmented efforts [21]. Group 1: Air Quality Crisis - Delhi is currently experiencing severe air quality issues, with pollution levels categorized as "very poor," reminiscent of past crises in major cities like Beijing [1][2]. - Stubble burning, vehicular emissions, and dust contribute to approximately 12,000 premature deaths annually in Delhi, with a study indicating that 3.8 million deaths in India from 2009 to 2019 were linked to air pollution [2]. Group 2: Beijing's Success - Beijing has implemented a series of top-down reforms and innovative policies, including the establishment of Low Emission Zones (LEZs) and significant reductions in coal consumption, achieving a 30% cut by 2017 [4][5]. - The city has seen a 35% reduction in PM2.5 levels from 2013 to 2017, with average levels dropping from 89.5 to 58 micrograms per cubic meter [9]. - By 2020, electric vehicles accounted for 40% of new sales, supported by subsidies and infrastructure development, contributing to a 20% decrease in respiratory cases [6][9]. Group 3: Monitoring and Reforestation - A nationwide network of 1,500 monitoring stations provides real-time PM2.5 data, enhancing public awareness and engagement through apps like "Blue Sky" [7]. - Reforestation efforts have led to the planting of 100 million trees around Beijing, improving natural air filtration [7]. Group 4: Delhi's Challenges - Delhi's approach to air pollution is characterized by a lack of coordination, relying on multiple agencies and reactive measures, which limits its effectiveness [11][13]. - The 2025 Air Pollution Mitigation Plan includes various initiatives, such as banning end-of-life vehicles and deploying anti-smog technology, but faces challenges from stubble burning and political hurdles [12][13]. Group 5: Cloud Seeding Experiment - Delhi's cloud seeding efforts, aimed at inducing rainfall to wash away pollutants, are still experimental and have shown limited results [17][18]. - Officials emphasize the need for further research and understanding before operationalizing cloud seeding as a solution [19][20].