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Human activities have impacted the environment since the first toolmakers learned to make fire. As the human population has grown and changed, so has our impact on the environment. Currently the world's population is estimated at 6–7 billion, and that number of people, along with the billions of domesticated animals, and their activities, are large enough to have major global and regional impacts. Climate change, declining fish populations in the oceans, and ever decreasing ranges for “wild” ecosystems are the most obvious impacts. Other impacts may be surprising to many people, especially those impacts that are regional and not raised to the level of international concern.This paper will take a very high level look at a number of global, regional and local human interactions with the environment, and how mitigating those impacts requires a very broad and multi-disciplinary response. Examples will focus on water, carbon and energy, all of which are needed for life, as we know it, to exist. Stewardship will be shown to involve determination and monitoring of many key indicators and environmental processes, followed by the tough decisions on how to steward those processes to maintain a healthy environment for all the planet's inhabitants. Stewardship is not easy, and there are few cases where solutions can be neatly divided into good or bad, positive or negative. 相似文献
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内河船舶船员出舱穿救生衣是避免发生落水死亡事故的一项重要制度。上海内河航运局14年来先后发生了226起落水事故,其中穿救生衣落水的有176起,没有1人死亡;而没穿救生衣落水的50起,就有25人死亡。这0比25的教训多么深刻。 事实证明一项好的制度必须严格执行才能生效。1978年至1980年,上海内河航运局由于严格执行船员出舱穿救生衣制度,连续三年杜绝了落水死亡事故。而去年1~11月,该局对这一制度的贯彻执行有所放松,接连发生3起落水死亡事故。局领导认真吸取了教训,采取措施,认真抓这一制度的贯彻执行,去年12月虽发生5起落水事故,却无一人死… 相似文献
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提起“0”这个数,谁都可以解释出它的含义是什么。“0”太寻常了,在实数范围内,“0”表示“零”这个数字,是一个没有的意思。然而,在矿工心目中,却有着神圣而庄严的意义。“0”和安全生产紧紧联在一起,“0”在安全生产中有着特殊的标志和意义。 在众多的煤炭生产用语中,有一个在其它行业很难见到的术语“百万吨死亡率”。这是一个衡量煤矿管理水平高低的术语,这是一个与黑色联在一起的术语,这是一个与矿工生命紧紧联在一起的术语,这是一个矿工人人关心的术语。它的每一增减,不仅标志着煤矿安全状况的好坏,而且告诉我们,在人们充分享受煤炭带来的光和热时,我们的 相似文献
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