我国建成全球规模最大的清洁钢铁生产体系

Group 1 - The core viewpoint emphasizes the significant improvements in China's ecological environment since the "14th Five-Year Plan," with key metrics showing a rise in air and water quality [1][3] - By 2024, the proportion of days with good air quality in cities at or above the prefecture level reached 87.2%, and the proportion of surface water with good quality exceeded 90% for the first time [1] - The PM2.5 concentration in cities at or above the prefecture level decreased to 29.3 micrograms per cubic meter, surpassing the targets set in the "14th Five-Year Plan" [1] Group 2 - The concept of "green" is highlighted as a fundamental aspect of high-quality development, with various regions transforming ecological advantages into benefits for people's livelihoods [3][4] - The establishment of the world's largest clean power supply system and the fastest-growing renewable energy system is noted, showcasing China's commitment to green development [3] - The ecological protection efforts have led to over 30% of land area being designated as ecological protection red lines, with significant improvements in forest coverage and biodiversity [5]