Paving the way or crowding out? The impact of the rise of climate change on environmental issue agendas
Climate change has emerged as a salient issue within the USA. In response, many environmental organizations have pushed climate change to the top of their agendas. As a consequence, critics have charged that environmentalists have decreased attention to—or abandoned altogether—traditional issues such as biodiversity. This research provides empirical data to evaluate such claims. I assess the degree to which climate change has come to dominate US environmental group agendas, using data from organizational websites, financial statements, and interviews. I find that climate change has moved to the top of group agendas, emerging as a key priority and commanding a significant percentage of organizational funding. However, rather than being associated with the neglect of other issues, analysis shows that groups tend to work on a greater number of issues after they prioritize climate change. Moreover, the nature of environmental campaigns has evolved as attention to climate change has increased.
The safety operation of a concrete face rockfill dam (CFRD) built on covering layers depend on the integrity of its water stop system. So analyzing the dam seepage field before and after joint sealing damaged is significant, which includes the study of the influence on the dam seepage behavior when the water stop of peripheral joint and slab joint were damaged. In this paper, taken a specific hydropower station project as an example, the numerical analysis models of a CFRD for simulating the different water stop damage and failure types were established. Then the influence mechanism how the damage of the peripheral joint and slab joint affects the seepage gradient, saturated surface and seepage discharge inside the dam was analyzed, and the influence values were obtained. Therefore, the water stop area that needs to focus on is ascertained when the dam anti-seepage system was arranged.