我国为促进臭氧层修复作出重要贡献

Group 1 - The theme for this year's International Day for the Preservation of the Ozone Layer is "From Science to Global Action" [1] - China has made significant contributions to ozone layer restoration, having eliminated approximately 628,000 tons of ozone-depleting substances, accounting for over half of the total elimination in developing countries [1] - By the end of this year, China is expected to achieve an additional elimination of over 90,000 tons of ozone-depleting substances [1] Group 2 - The 40th anniversary of the Vienna Convention for the Protection of the Ozone Layer was commemorated, highlighting the importance of international cooperation in eliminating ozone-depleting substances [1] - The global effort is projected to restore the ozone layer to its pre-1980 levels by the middle of this century [1] - The Kigali Amendment is expected to help avoid a maximum of 0.5°C of global warming by the end of this century through the reduction of hydrofluorocarbons [1] Group 3 - China joined the Montreal Protocol in 1991 and accepted the Kigali Amendment in 2021, enhancing the control of non-CO2 greenhouse gases [2] - The Executive Secretary of the UN Environment Programme Ozone Secretariat stated that 99% of ozone-depleting substances have been eliminated globally, with China playing a leading role [2] - Starting July 1 next year, China will completely eliminate the use of hydrochlorofluorocarbons in three industries, ahead of schedule by three and a half years [2]