Diatoms in Saline Lakes Paleoclimate and Paleoecology Interpretations

2007 ◽  
Vol 13 ◽  
pp. 149-168 ◽  
Author(s):  
Erik J. Ekdahl
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Global Climate Change ◽  
Water Conservation ◽  
Environmental Changes ◽  
Global Climate ◽  
Light Availability ◽  
Ionic Concentration ◽  
Mitigation Strategies ◽  
Environmental Response

Average global temperatures are predicted to rise over the next century and changes in precipitation, humidity, and drought frequency will likely accompany this global warming. Understanding associated changes in continental precipitation and temperature patterns in response to global change is an important component of long-range environmental planning. For example, agricultural management plans that account for decreased precipitation over time will be less susceptible to the effects of drought through implementation of water conservation techniques.A detailed understanding of environmental response to past climate change is key to understanding environmental changes associated with global climate change. To this end, diatoms are sensitive to a variety of limnologic parameters, including nutrient concentration, light availability, and the ionic concentration and composition of the waters that they live in (e.g. salinity). Diatoms from numerous environments have been used to reconstruct paleosalinity levels, which in turn have been used as a proxy records for regional and local paleoprecipitation. Long-term records of salinity or paleoprecipitation are valuable in reconstructing Quaternary paleoclimate, and are important in terms of developing mitigation strategies for future global climate change. High-resolution paleoclimate records are also important in groundtruthing global climate simulations, especially in regions where the consequences of global warming may be severe.

scholarly journals Synergistic impacts of global warming and thermohaline circulation collapse on amphibians

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Julián A. Velasco ◽  
Francisco Estrada ◽  
Oscar Calderón-Bustamante ◽  
Didier Swingedouw ◽  
Carolina Ureta ◽  
...  
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Thermohaline Circulation ◽  
Climate Model ◽  
Global Climate ◽  
Extinction Risk ◽  
Meridional Overturning Circulation ◽  
Mitigation Strategies ◽  
Amphibian Species ◽  
Climate Conditions

AbstractImpacts on ecosystems and biodiversity are a prominent area of research in climate change. However, little is known about the effects of abrupt climate change and climate catastrophes on them. The probability of occurrence of such events is largely unknown but the associated risks could be large enough to influence global climate policy. Amphibians are indicators of ecosystems’ health and particularly sensitive to novel climate conditions. Using state-of-the-art climate model simulations, we present a global assessment of the effects of unabated global warming and a collapse of the Atlantic meridional overturning circulation (AMOC) on the distribution of 2509 amphibian species across six biogeographical realms and extinction risk categories. Global warming impacts are severe and strongly enhanced by additional and substantial AMOC weakening, showing tipping point behavior for many amphibian species. Further declines in climatically suitable areas are projected across multiple clades, and biogeographical regions. Species loss in regional assemblages is extensive across regions, with Neotropical, Nearctic and Palearctic regions being most affected. Results underline the need to expand existing knowledge about the consequences of climate catastrophes on human and natural systems to properly assess the risks of unabated warming and the benefits of active mitigation strategies.

Study on Low-Carbon Economy Model and Method of Chinese Tourism Industry

2011 ◽  
Vol 2 (2) ◽  
pp. 69-102 ◽  
Author(s):  
Zhang Mu ◽  
Luo Jing ◽  
Zhang Xiaohong ◽  
Tang Lei ◽  
Feng Xiao-na ◽  
...  
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Global Climate Change ◽  
Global Climate ◽  
Tourism Industry ◽  
Low Carbon ◽  
Economy Model ◽  
Low Carbon Economy ◽  
Framework System ◽  
Carbon Economy

Recent years saw the global wave of new low-carbon economy which is a strategic measure to cope with global warming, and it has gained concerns from many governments. As the representatives of developing countries, China is responsible for “common but distinguishing duty for global climate change.” Many policies have been made to develop low-carbon economy with the hope to advocate and innovate low-carbon economy in some industries and cities during these years. Therefore, it is a theoretical and innovative project to find a low-carbon economical model for various industries and carry out the experiments of low-carbon economy in some cities. Hence, guided by low-carbon economy theory, choosing booming Chinese tourism industry as the object, this paper constructs an operation framework system of low-carbon tourism development from the advantage of low-carbon tourism to the proposal of low-carbon tourism definition so as to conclude an execution scheme of “six elements” of low-carbon tourism with selecting OCT East (Chinese national ecotourism demonstration district) and Mt. Danxia (World Geo-park) as demonstration districts to discuss about models and methods of low-carbon economy in tourism.

Mass communication and public understanding of environmental problems: the case of global warming

2000 ◽  
Vol 9 (3) ◽  
pp. 219-237 ◽  
Author(s):  
Keith R. Stamm ◽  
Fiona Clark ◽  
Paula Reynolds Eblacas
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Interpersonal Communication ◽  
Metropolitan Area ◽  
Global Climate Change ◽  
Mass Communication ◽  
Global Climate ◽  
Public Understanding ◽  
Positive Contribution ◽  
General Sense

Public understanding of global warming, also known as global climate change, is treated here as an example of a mass communication problem that has yet to be adequately solved. A survey of metropolitan area residents found that although people are aware of this problem in a general sense, understanding of particular causes, possible consequences, and solutions is more limited. Both mass media and interpersonal communication appear to make a positive contribution to understanding, as well as to perpetuating some popular misconceptions.

A Review and Discussion on Modeling and Assessing Agricultural Best Management Practices under Global Climate Change

2016 ◽  
Vol 9 (1) ◽  
pp. 245 ◽  
Author(s):  
Yongbo Liu ◽  
Wanhong Yang ◽  
Chengzhi Qin ◽  
Axing Zhu
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Best Management Practices ◽  
Water Conservation ◽  
Management Practices ◽  
Global Climate ◽  
Spatiotemporal Pattern ◽  
Best Management ◽  
Challenges And Opportunities ◽  
Negative Impacts

<p>Understanding the impacts of global climate change on the spatiotemporal pattern of hydrologic cycle and water resources is of major importance in highly developed watersheds all over the world. These impacts are strongly dependent on related changes in intensity and frequency of extreme climate events. Implementation of Best Management Practices (BMPs) and policy approaches at watershed and regional scales is essential for mitigating their negative impacts on soil and water conservation, and sustainable economic development. However, the uncertainty of BMP effectiveness including increasing variability of future water supply and changing magnitudes of nonpoint source pollution has to be accounted for in watershed planning and management. This paper provides a review and discussion on the impacts of global climate change on BMP’s hydrologic performance, the current progress on hydrologic assessment of BMPs, as well as the existing problems and countermeasures. Research challenges and opportunities in the field of hydrologic assessment of BMPs under global climate change are also discussed in this paper.</p>

Study on Low-Carbon Economy Model and Method of Chinese Tourism Industry

2011 ◽  
pp. 492-525
Author(s):  
Zhang Mu ◽  
Luo Jing ◽  
Zhang Xiaohong ◽  
Tang Lei ◽  
Feng Xiao-na ◽  
...  
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Global Climate Change ◽  
Global Climate ◽  
Tourism Industry ◽  
Low Carbon ◽  
Economy Model ◽  
Low Carbon Economy ◽  
Framework System ◽  
Carbon Economy

Recent years saw the global wave of new low-carbon economy, which is a new strategic measure to cope with global warming, and it has gained lots of concerns from many governments. As the representatives of developing countries, China is responsible for “common but distinguishing duty for global climate change.” Many policies have been made to develop low-carbon economy with the hope to advocate and innovate low-carbon economy in some industries and cities during these years. Therefore, it is a theoretical and innovative project to find out a low-carbon economical model for various industries and carry out the experiments of low-carbon economy in some cities. Hence, guided by low-carbon economy theory, choosing booming Chinese tourism industry as the object, this chapter tries to construct an operation framework system of low-carbon tourism development from the advantage of low-carbon tourism to the proposal of low-carbon tourism definition so as to conclude an execution scheme of “six elements” of low-carbon tourism with selecting OCT East (Chinese national ecotourism demonstration district) and Mt. Danxia (World Geo-park) as demonstration districts to discuss about models and methods of low-carbon economy in tourism.

Sign in / Sign up

Export Citation Format

Share Document