AASA Beijing workshop on agricultural culture and sustainable development in Asia 2009 农业文化与亚洲可持续发展讨论会 Agriculture in Asia: Past, Present and Future 亚洲农业的过去、现在和未来 2009年8月1213日,亚洲科学院联合会(AASA)组织,中国科学院承办的农业文化与亚洲可持续发展讨论会在北京友谊宾馆召开。来自中国科学院、中国社会科学院、加拿大多伦多大学、英国诺丁汉大学、日本大阪经济大学、韩国釜山大学、中国农业博物馆、陕西师范大学、华南农业大学和南京农业大学等单位的20位代表参加了会议。 区域发展研究部助理研究员王义超参加了本次会议,并对北京市大兴区留民营村三十年来的生态农业建设进行了回顾与评论。 部分与会人员合影 第二排右起:曾雄生、王毅、李根蟠、Andrew Murray Watson (加)、崔德卿(韩)、德永光俊(日)、徐旺生、李令福 第三排右起:闵庆文、王义超、孙烈、张柏春、严火其、陈劭锋 第一排右起:陈悦、魏露苓、任博,右6 黄荣光 摄影朱崇开 详细情况请参阅: http://agri-history.ihns.ac.cn/blog/more.asp?name=zengid=13537
Most people get worried about how much energy reserves we have left, but as this graphic shows, that's the least of our problems. The real problem is the materials we use to make things. Energy could be harnessed from eternal sources, like the sun, the wind, or the seas. But there is only a limited amount of elements in planet Earth andwhat's worstbringing them from other planets will prove impractical with our current technology (and the technology that will be available in the next century). In the meantime, copperwhich is everywhere around youwill be gone in about 61 years; antimonywidely used in medicineswill be depleted in 20 years; while indium, rhodium, platinum, or silverwhich are present in many essential consumer electronicswon't last much longer. And those estimations are only valid if we manage to consume half of what we are consuming now. So, unless we really push technology forward, dramatically increase our recycling rhythm, or something extraordinary happens firstlike Apophis obliterating us or the Large Hadron Collider blows us to another dimension, or Nazi zombies getting out of their crypts to make bacon of all of uswe and our children are going to have a really hard time pushing the world forward. I guess we will have to keep taking life one weekend at a time. 源自: http://i.gizmodo.com/5219598/how-long-will-our-world-last-yes-we-are-screwed