this research studies the potential impact of climate change on future trend and changes of two well known drought indicators namely rdi and spi in yazd meteorological station, in central part of iran. for this purpose, data of hadcm3 model that were resulted from gcm-runs based on the ipcc-sres scenarios of a2 and b2 were acquired and analyzed for projection of daily tmin, tmax and precipitati...

climate is the most important factor which control desertification .in order to detect climate changes in desert zones, time trend analysis is applied to extreme indices in kashan station using extreme climate index software (ecis). results show significant trends in extreme indices during the past decade 1995-2004 and the pronounced warming is associated with a negative trend in cold extremes....

the agricultural sector was affected by climate change more than every other sectors, because it is close to nature. in other words, the effects of climate change were been on the farmers’ livelihood. farmers need to entrepreneurial changes for adaptation to climate change in their livelihood. hence, investigation of farmers’ entrepreneurial behavior in response to climate change was the main p...

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â â â  â â  â  abstract â  this paper examines the two most important current efforts to devise new rules binding all nations the negotiations in the wto of trade rules and the negotiations under the un framework convention on climate change to devise rules restricting the annual emissions of greenhouse gases. both negotiations have failed after several years of intensive effort. there are rema...

economic policies need to be analyzed within consistent and coherent framework. in the absence of an operational framework the policy analyst is confronted with an indeterminate model to work with. this paper intends to offer a specific framework for economic-environment integration to highlight the role of economic policy and environment in sustainable development for the purpose of empiri...