首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   300篇
  免费   3篇
  国内免费   6篇
安全科学   1篇
废物处理   12篇
环保管理   31篇
综合类   126篇
基础理论   50篇
环境理论   1篇
污染及防治   62篇
评价与监测   9篇
社会与环境   17篇
  2023年   2篇
  2022年   2篇
  2021年   7篇
  2020年   2篇
  2019年   8篇
  2018年   12篇
  2017年   8篇
  2016年   19篇
  2015年   9篇
  2014年   9篇
  2013年   14篇
  2012年   15篇
  2011年   22篇
  2010年   13篇
  2009年   15篇
  2008年   7篇
  2007年   13篇
  2006年   10篇
  2005年   2篇
  2004年   6篇
  2003年   6篇
  2002年   11篇
  2001年   4篇
  1999年   5篇
  1998年   4篇
  1996年   2篇
  1995年   5篇
  1994年   3篇
  1993年   3篇
  1987年   2篇
  1986年   2篇
  1984年   3篇
  1982年   2篇
  1969年   2篇
  1966年   2篇
  1964年   2篇
  1963年   3篇
  1962年   3篇
  1961年   2篇
  1959年   2篇
  1958年   5篇
  1957年   6篇
  1956年   2篇
  1955年   3篇
  1953年   2篇
  1940年   2篇
  1921年   2篇
  1920年   2篇
  1919年   1篇
  1915年   3篇
排序方式: 共有309条查询结果,搜索用时 15 毫秒
71.
72.
73.
74.
75.
76.
77.
78.
79.
Energy demand is growing rapidly across the world, and international funding agencies like the World Bank have responded by emphasizing energy in their project portfolios. Some of these projects promote the use of fossil fuels, while others support cleaner forms of energy. For climate change mitigation, it is important to understand how international funders decide on the choice between fossil fuels and cleaner sources of energy. Examining the energy funding portfolios of the nine most important international funders for the years 2008-2011, we show that funding for fossil fuels has been concentrated in highly urbanized autocracies. Due to economies of scale, fossil fuels are suitable for generating heat and electricity for densely populated urban areas. Autocratic rulers are subject to urban bias in their policy formulation because the support of concentrated urban constituencies is key to an autocrat’s political survival, and in democracies environmental constituencies can effectively oppose fossil fuel projects.  相似文献   
80.
Flood damage has increased significantly and is expected to rise further in many parts of the world. For assessing potential changes in flood risk, this paper presents an integrated model chain quantifying flood hazards and losses while considering climate and land use changes. In the case study region, risk estimates for the present and the near future illustrate that changes in flood risk by 2030 are relatively low compared to historic periods. While the impact of climate change on the flood hazard and risk by 2030 is slight or negligible, strong urbanisation associated with economic growth contributes to a remarkable increase in flood risk. Therefore, it is recommended to frequently consider land use scenarios and economic developments when assessing future flood risks. Further, an adapted and sustainable risk management is necessary to encounter rising flood losses, in which non-structural measures are becoming more and more important. The case study demonstrates that adaptation by non-structural measures such as stricter land use regulations or enhancement of private precaution is capable of reducing flood risk by around 30 %. Ignoring flood risks, in contrast, always leads to further increasing losses—with our assumptions by 17 %. These findings underline that private precaution and land use regulation could be taken into account as low cost adaptation strategies to global climate change in many flood prone areas. Since such measures reduce flood risk regardless of climate or land use changes, they can also be recommended as no-regret measures.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号