里约成绩单

纽约——全世界优秀的科学出版物之一《自然》刚刚赶在下周举行的里约+20可持续发展首脑会议前公布了措辞严厉的成绩单。1992年首届里约地球峰会签署的三项伟大条约执行成绩如下:气候变化-F,生物多样性-F,防治荒漠化-F。人类究竟还能否避免被开除球籍的厄运?

整整一代人早已明白世界需要改变发展道路。我们需要更多地利用风能、太阳能和地热发电等低碳替代能源,而不能继续依靠化石燃料来推动世界经济。我们需要调整农业及渔业生产以适应环境的承载能力,而不能在毫不顾忌对其他物种影响的情况下狩猎、捕鱼和砍伐树木。我们需要结束极端贫困并降低世界最贫困地区快速增长的生育率,而不能坐视全球最弱势群体得不到计划生育,教育和基本医疗保健等服务。

简言之,我们需要认识到今天的70亿人口在本世纪中叶可能达到90亿,所有人在高科技驱使的能源密集型全球经济中都拥有非常密切的联系,因此我们作为整体掌握着前所未有的毁坏​​地球生命支持系统的能力。但通常个人行为的后果离我们的日常生活如此遥远,以致于我们可能在浑然不觉中跌下悬崖摔得粉身碎骨。

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