نتایج جستجو برای: climate change and acid rain
تعداد نتایج: 17018257 فیلتر نتایج به سال:
As the most abundant hydrocarbon in the atmosphere and a powerful greenhouse gas, methane (CH4) plays an important role in both the chemical composition and radiative balance of the earth’s atmosphere. To understand it’s role in the atmosphere, its sources and sinks as well as processes governing the rates and fluxes of this gas is an important objective if we are to understand the function of ...
terms of address as an important linguistics items provide valuable information about the interlocutors, their relationship and their circumstances. this study was done to investigate the change route of persian address terms in the two recent centuries including three historical periods of qajar, pahlavi and after the islamic revolution. data were extracted from a corpus consisting 24 novels w...
Environmental monitoring has become increasingly important due to the significant impact of human activities and climate change on biodiversity. Environmental sound sources such as rain and insect vocalizations are a rich and underexploited source of information in environmental audio recordings. This paper is concerned with the classification of rain within acoustic sensor recordings. We prese...
From the 1970s to 1990s, more stringent air quality regulations were implemented across North America and Europe to reduce chemical emissions that contribute to acid rain. Surface water pH slowly increased during the following decades, but biological recovery lagged behind chemical recovery. Fortunately, this situation is changing. In the past few years, northeastern US fish populations have be...
[1] Groundwater recharge is likely to be affected by climate change. In semiarid regions where groundwater resources are often critical, annual recharge rates are typically small and most recharge occurs episodically. Such episodic recharge is uncertain and difficult to predict. This paper analyzes the impacts of different climate predictions on diffuse episodic recharge at a low‐relief semiari...
Taking the role of frames into account may significantly add to the tools that have been developed for communication and learning on complex risks and benefits. As part of a larger multidisciplinary study into climate-related forms of sense-making this paper explores which frames are used by the citizens of Western European countries and, in particular, the Netherlands. Three recent multi-natio...
Executive Committee Members ........................................................ 2 Star Wars: The Price of All that Money by Peter J. Gollon ................................ 3 Star Wars: Successor to MAD by Paul Craig •....................................•....•• 4 Estimating Vulnerability to EMP Effects by John H. Richardson ....................•...... 5 EMP From High-Altitude Nuclear Explo...
As Earth’s atmosphere accumulates carbon dioxide (CO2) and other greenhouse gases, Earth’s climate is expected to warm and precipitation patterns will likely change. The manner in which terrestrial ecosystems respond to climatic changes will in turn affect the rate of climate change. Here we describe responses of an old-field herbaceous community to a factorial combination of four levels of war...
Climatic parameters in time and space scales of change are for many reasons of Changes and how they should be based on observations using a statistical method to be determined. Analysis of the most widely used statistical methods that assess potential climate change on hydrological time series, such series of precipitation, temperature and flow rate used. This study of 11 synoptic,rain gage and...
Introduction In the future decades, climate change will influence the food and water security,and there are substantive evidences indicating that the developing countries will confront extensive pressure from the disastrous consequences of this climate change. The agricultural section is the most vulnerable section to the climate changes due to its dependence on the condition of water resource...
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