中外清洁生产背景的比较及其对我国的启示

清洁生产是实施可持续发展战略的重要途径。本文从中外比较的角度,分析了国外清洁生产的成功经验和中外实施清洁生产的背景差异,提出了今后我国在实施清洁生产战略时,应重视的几个方面,即完善实施前提,发挥政府与产业部门的作用,加强科学研究与教育培训     

富伦纸业污染治理成果的启示

本文报道了富伦纸业通过工艺与设备的调整与改造，工艺全程控制与末端综合治理，不但治理了环境污染，还获得了一定的经济效益。     

怎样上好《毛泽东思想概论》第一课

本文认为，如果能将“毛泽东思想概论”这一课程名分解为“毛泽东”“毛泽东思想”“毛泽东思想概论”3个概念，并逐一进行总体性、概括性讲解，对上好（《毛泽东思想概论》第一课，很有帮助。     

论环境污染的外部不经济性及法律对策

文章对造成环境污染的外部不经济性原因进行了分析,指出只有通过政府干预,加强立法,明确环境资源产权,征收环境污染税收,开放排污权交易市场,才能利用市场机制优化环境资源的配置,合理的分配环境资源,从而实现整个社会最有效率地控制污染.     

The siting puzzle: Balancing economic and environmental gains and losses

Traditional approaches to the siting of potentially hazardous but regionally necessary facilities are often ineffective and lead to drawn-out legal disputes ultimately satisfactory to none of the parties. Research at MIT over the last decade has indicated five factors that may solve the siting puzzle. Application of these principles do not guarantee that a decision will not be disputed but may enhance the possibility of a wise and durable agreement.     

超标概率的提出及其应用

鉴于超标率提出的不科学性,文章在分析其产生的原因之后,基于统计学理论建立了一种数学分析模型,并在此基础上提出一种能够比较真实反映环境质量超标情况的参数———超标概率,并进行了实例分析。     

南水北调东线工程东平湖水COD环境容量计算及水质控制措施

根据南水北调东平湖水质要求,通过调查,摸清了东平湖上游的排污现状,选用多点容量计算法得出各河段和东平湖的COD环境容量,并提出了控制措施。     

大气污染对城市绿化植物叶片叶绿素含量的影响

研究了南阳市城市大气对该市5种常见城市绿化植物叶片叶绿素(a、b)含量比例(Ca/Cb)以及叶片叶绿素总含量(Ct)的影响。通过研究发现,污染严重的南阳卷烟厂区域植物叶片叶绿素Ca/Cb值相对较高,叶绿素总含量(Ct)相对较低;无污染的对照区域(南阳师范学院院内绿化区)植物叶片叶绿素Ca/Cb值相对较低,叶片叶绿素总含量(Ct)相对较高。通过数据分析,进一步得出了5种常见城市绿化植物抗大气污染能力的大小:女贞>大叶黄杨>月季>金叶女贞>三叶草。     

The rise of ingredient disclosure: The California and New York experience

In the recent past, two important states—California and New York—have launched extensive and precedent‐setting ingredient disclosure laws regarding cleaning products with the clear goal of prompting the deselection of certain chemical substances and forcing product reformulation. Industry prefers to refer to this trend as “ingredient communication,” a goal we can all agree is desirable. By whatever name, these state measures will have a significant impact on ingredient disclosure trends across product lines, likely well beyond their stated application to cleaning products. These state laws are summarized below, followed by a discussion of their similarities, key differences, and their implications.     

Convergent validity between willingness to pay elicitation methods: an application to Grand Canyon whitewater boaters

We directly compare trip willingness to pay (WTP) values between dichotomous choice contingent valuation (DCCV) and discrete choice experiment (DCE) stated preference surveys of private party Grand Canyon whitewater boaters. The consistency of DCCV and DCE estimates is debated in the literature, and this study contributes to the body of work comparing the methods. Comparisons were made of mean WTP estimates for four hypothetical Colorado River flow-level scenarios. Boaters were found to most highly value mid-range flows, with very low and very high flows eliciting lower WTP estimates across both DCE and DCCV surveys. Mean WTP precision was estimated through simulation. No statistically significant differences were detected between the two methods at three of the four hypothetical flow levels.