As the use of Cryptocurrencies increases, concerns increase due to their association with their negative implications. Cryptocurrency is a type of digital currency that use blockchain technology to work on a peer-to-peer basis. The nature of the blockchain means that two persons can have a transaction without exitance of a third party even if they do not trust each other. Unlike traditional currencies, Cryptocurrencies are not controlled by a central authority such as a government or central bank. This leads to social and economic implications. Negative social implications of cryptocurrencies include their use in criminal activities, heightened cybercrime, potential exacerbation of wealth inequality, insufficient consumer protections, and the exclusion of individuals without access to technology or knowledge of using technology. These factors together could deepen the social disparities. Negative Economic Implications of Cryptocurrency include Environmental impact, volatility, market manipulation and tax evasion.This letter tries to analyse two of the most important social and economic implications of cryptocurrencies: first, the role of cryptocurrency in social and economic criminal activity, and second, addressing their Environmental impacts. After that strategies will be explored to address these two economic, social implications associated with cryptocurrency usage. The first approach targets the involvement of cryptocurrencies in social and economic crimes, while the second addresses the Environmental impact of mining process.

The concept of green human resource management is presented as a new perspective in environmentprotection which incorporates Environmental management into human resource management. Thisqualitative study aimed at examining the factors that lead employees to achieve Environmental performancein organizations through human resource management. First, a systematic meta-synthesis study wasperformed to review the literature during 2010-2015, and the desired codes were identified. Then, data weresummarized and new components were presented by a focus group composed of informed experts. Theamount of support factors identified in the previous studies was assessed and ranked using the Shannonentropy. Results indicate that among the 12 identified factors, training, recruitment, and rewards are themost important ones and play an important role in the implementation of green human resourcemanagement.

Considering numerous problems related to the old textures, sustainable development can be mentioned as the most efficient approach to avoid consequent shortcomings. The methodology adopted in the present paper is of analytical–descriptive type. Using the mentioned method, the data were collected through the field and documentary studies. The statistical society of present paper includes specialists in the field of urban planning who played an important role in the renovation of old textures in Amol, a city in the northern part of Iran. By observing the social, economic, and Environmental characteristics in the studied region, and by interviewing the residents in Amol‘s old textures, the SWOT analysis, the analysis of strengths, weaknesses, opportunities and threats using qualitative method, was adopted in order to detect the old textures. To analyze the data, SPSS and Excel software programs were used. In this paper, efforts have been made to analyze the renovation of old urban textures as having in mind the sustainable development. To organize the old textures in Amol, the ST type strategy was adopted from diverse strategies in this paper. The mentioned strategy mainly focuses on the internal strengths in order to eliminate the external threats.

In Iran the mainstreaming tool for integrating Environmental concerns into energy sector is an Energy-Environment Review (EER-Iran). This paper comprises: (i) an analysis of the current situation with regards to energy production and consumption; (ii) an evaluation of the growth prospects with regard to energy production and consumption; (iii) the identification of Environmental issues induced by the generation and use of energy and estimation of the costs of damages; (iv) the evaluation of the extent of contribution to the climate-change phenomenon through emission of greenhouse gases; (v) the evaluation of the proposed mitigation measures for the previously identified Environmental problems; and (vi) conclusions and recommendations. The EER-Iran assessed the total health damage from air pollution in 2001 at about US $ 7 billion; equivalent to 8.4% of nominal GDP. In the absence of the price reform and control policies, the EER estimated that the damage in Iran will grow to US $ 9 billion by 2019, in the money of 2001. This is equivalent to 10.9% of nominal GDP, i.e. a large percentage of a larger GDP. Of this total, US $ 8.4 billion come from transport sector. The damage cost to the global environment from the flaring of natural gas assessed on the basis of a carbon price of US $ 10/ton CO2 and found to be approximately US $ 600 million per year.