由波茨坦气候影响研究所60名科学家联合完成的年度报告指出,用于评估地球生命支撑系统的9项行星边界中有7项已达历史最高违反程度1。这七个危险领域分别涵盖气候变化、生物圈完整性变化、陆地系统变化、淡水变化、生物地化流改变、新型物质引入和海洋酸化1。与此同时,仅有平流层臭氧耗尽和大气气溶胶负荷两个领域出现改善迹象1。
报告强调人类正面临大规模、持久且可能不可逆的变化风险1。波茨坦气候影响研究所科学家鲍里斯·萨克舍夫斯基表示,"风险在上升,我们的容错空间在缩小"1。另一位科学家约翰·罗克斯特伦指出,"加速行动以返回安全运行空间对保护生命和生计至关重要"1。尽管形势严峻,报告也强调人类仍具备扭转局面的知识和能力1。
该报告于周一在纽约气候周期间发布1,气候周预计将吸引超10万参与者参加1。
An annual report released by 60 scientists from the Potsdam Institute for Climate Impact Research reveals that seven of the nine planetary boundaries—thresholds essential for sustaining life on Earth—have now reached historically unprecedented violation levels 1. The breached boundaries include climate change, biosphere integrity loss, land system change, freshwater depletion, altered biogeochemical flows, novel entity pollution, and ocean acidification 1. Only two areas show improvement: stratospheric ozone depletion and atmospheric aerosol loading 1.
The findings underscore mounting risks of large-scale, persistent, and potentially irreversible changes to Earth's life-support systems 1. However, scientists emphasize that humanity retains the knowledge and capacity to reverse course. Boris Sakschewski stated that "risks are rising and our margin for error is shrinking" 1. Johan Rockström stressed that "accelerated action to return to safe operating spaces is essential for protecting life and livelihoods" 1.
The report was released during Climate Week in New York, an event expected to draw more than 100,000 participants—a record attendance 1.
评论
还没有评论,欢迎留下第一条。