通过向湖泊、河流,溪流及其他积水地投放石灰可以缓解酸雨所带来的损失。石灰可以缓解酸化的一些征兆,但并非真正的解决方法,对于许多湖泊和流动水体都不太现实,而且也不能解决问题的病根。在污染源降低到一个令人满意的水平之前,我们应该把它看作是一种临时性应付措施。永久性的解决办法就是首先要减少污染源。在保护水和森林方面的严格的控制所起到的作用以外,他们还将在防止腐蚀方面挽救数以百万计的美元的损失。
The urban environment has to offer as many recreation activities as possible, and the design of these has to be such that more obligatory activities can also have a recreative aspect. The very best standard of living is nothing if it is not possible to take a pleasant walk in the district, if the children cannot be allowed to play in the streets, because the risks of traffic are too great, if during shopping you can nowhere find a spot for enjoying for a moment the nice weather, in short, if you only feel yourself at home after the street-door of your house is closed after you.
Acid rain can be mitigated by pouring lime into lakes, rivers and streams and other catchments. Lime may alleviate some of the symptoms of acidification, but it’s not a real solution, for it is unpractical for many lakes and running water. Furthermore, it cannot solve the root cause of the problems. Before reducing the sources of pollution to a satisfied level, we should regard lime as a temporary measure. The permanent solution is first to decrease the source of pollution. Besides the effects produced by the strict controls in terms of protecting water sources and forests, they will save millions of dollars in aspects of corrosion prevention.
城市环境应该尽可能多地提供一些休闲活动,并且这些活动的设计要能够让更多的义务活动也有休闲的一面。如果不能在社区里面愉悦地散步,如果孩子们不允许在街道上玩耍,因为街上交通风险太大,如果在购物期间不能找到一个场所享受片刻的好天气,总而言之,如果你只有在自己房子的临街大门被关在身后时才感觉在家里的话,那最好的生活标准其实都无关紧要了。