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Abstract: Kyoto protocol was the first agreement regarding control of climate change problems. Clean development mechanism (CDM) was included in the Kyoto protocol to promote sustainable development in developing countries (non-Annex I countries) and assist developed countries (Annex I countries) to achieve their emission reduction targets. CDM allows trading of emissions reductions and helps to increase sustainable development in a developing country and reduce global emissions in developed country. Renewable energy sources are the appropriate alternatives for sustainable development through CDM. India is one of the emerging nations in renewable energy sector. Government of India is trying to enhance energy generation through renewable and carbon trading. This paper shows the current status and progress of renewable energy through CDM in India. [Copyright &y& Elsevier]

Abstract: Adequate amount of energy generation in a sustainable manner is a major challenge in the present energy scenario. Fast depleting fossils fuels and their environmental effects forces to look towards renewable sources for sustainable development. Among all renewable sources, small hydropower (SHP) is one of the promising sources for sustainable water and energy development. The geography of India supports the development of small hydro projects to enhance the energy generation. Small hydropower development is also necessary for proper utilization of available water resources. Present study has been carried out to highlight the water resource and small hydropower potential in India. Utilization of small hydropower sources for sustainable development has also been presented. [Copyright &y& Elsevier]

Energy saving is a vital element in today's scenario. Earth Air Heat Exchangers (EAHE) is a technique that promotes energy savings. EAHE is a non-conventional technique that uses the earth's underground heat for space cooling/heating. In this article, review of different combinations of EAHEs is presented. The review presents an apprehensible summary of the previous works on EAHE. The review addresses an elaborated description of the analytical and experimental studies on the different combination of EAHE and analyses the results from the thermal performance. It also consider the environmental aspect in the field of energy saving. It is concluded from the summary that the design parameters directly or inversely affect the outlet temperature. The result also shows that the pipe materials does not have much influence on the outlet temperature. In the case of energy saving, EAHE technology saves more energy that can replace the conventional air conditioning systems. Thus, this technology can effectively reduce the greenhouse gases and improve the environment. [ABSTRACT FROM AUTHOR]