Global warming has multi dimensions. An integrated approach will be required to cope with this. Such as Ozone depletion, de-foredtation, desertification, green house gases.

Adopting solar energy or other renewable energy resources will have minor contribution in fighting against global warming and climate change. Solar energy and wind energy are used at house-hold level only. Most of the Carbon dioxide is contributed by transport sector and needed to be focused.

Renewables should be 100%, so the environment will not be affected. However, people are very slow in adopting them, because they think they will not affect them directly, only their children and grandchildren will suffer.

Of course it will reduce the carbon emission. but the relationship between global warming and carbon emission is still hard to understand and that between carbon concentration and human activity is unknown as well

CO2 may be not the only reason of global warming. Again, we need to assess the global energy demand and supply potential of renewable energy. In this present word renewable energy contributing very small in global warming (my opinion)

Global warming has multi dimensions. An integrated approach will be required to cope with this. Such as Ozone depletion, de-foredtation, desertification, green house gases.

Adopting solar energy or other renewable energy resources will have minor contribution in fighting against global warming and climate change. Solar energy and wind energy are used at house-hold level only. Most of the Carbon dioxide is contributed by transport sector and needed to be focused.

Very good contributions

Renewable energy seems to be the only solution to the environment and the depletion of fossil fuels.

Dear Dr. I agree with the interesting reactions of the previous responses of the researchers. I am working on renewable energy 'biofuels'/'biodiesel'

A number of options for production of biodiesel as an alternative source have been considered in many countries. Biodiesel is being looked at as an i

mportant alternative fuel in the overall energy security world over. Since the oil crisis of the 1970s and recognition of the limitations of world oil resources, biodiesel has received special attention (Heller, 1996).

Biodiesel is a renewable liquid fuel that can be produced locally, thus helping reduce the countries dependence on imported oil. It is also desirable to help mitigate the effects of climate change. It is non-toxic rather it is environmentally friendly as it reduces emissions of carbon monoxide (CO) by approximately 50%, sulfur dioxide by 100%, 40-60% soot emission and carbon dioxide by 78%, 10-50% hydrocarbons and 5-10% nitrous oxide

depending on the engine tuning and age lifecycle basis (Sheehan, 1998). It also can reduce particulate emissions by around 50%, compared with fossil-source diesel (Beer et al., 2004). Because of benefit it’s the global production of biodiesel reached 3 billion litters in 2004 (Wilkins, 2006). According to (Barbara, 2007) biodiesel (i) reduce global warming gas emissions, (ii) reduce tailpipe emissions, including air toxics, (iii) nontoxic (iv)

biodegradable, and suitable for sensitive environments. Since it allow large scale plantation it halt desertification. In addition to its ecological benefit biodiese

l have many economic and social advantages. It can reduce foreign currency allocated to buy or import fossil fuel.

You can have some of papers reported in association with biodiesel feedstocks.

Article Assessment and Evaluation of Ethiopian Physic Nut (Jatropha ...

Article Fatty acid and biodiesel characteristics Ethiopian Jatropha ...

Article Oil content, fruit and seed characteristics Ethiopian Jatrop...

Article Phenotypic Variability in Ethiopian Castor (Ricinuscommunis ...

التقليل من نسبة الغازات الدفيئة

Thank you dear colleagues Wahag Abass Beemnet Mengesha Kassahun Mahesh Kumar Elma Satrovic Joshua O. Ighalo

Thank you dear colleagues Nafees Mohammad Shahab Uddin Michael Issigonis Sijie Tang Shahab Uddin Nafees Mohammad

Thank you dear colleagues Khaoula Hidouri Nino Durglishvili

Greenhouse gases have recently increased to become a surplus from the atmosphere needed to maintain Earth's temperature. This is because of the growing human human activities. These additional amounts of greenhouse gases cause their presence in the atmosphere to maintain a greater amount of energy. Global Warming .

renewable energy contribute in preventing further pollution of the atmosphere,reduce the climate change. in addition to, the proven environmental benefits, it offer energy certainty and stability in areas where political and social issues or the geographic situation could otherwise restrict access to the fuel or power grid, especially in faraway communities.

Reduction of green house gases

Thank you dear Mala Babagana Gutti

Thank you dear Mohammed Hussein

Thank you Khaoula Hidouri

Thank you Afraa Ibrahim

Efforts to reduce global warming have created a strong driver in the world for renewable energy. As a result, the use of wind turbines has increased tenfold over the past decade, with wind energy being referred to as the most efficient renewable energy In terms of cost. "People have to believe that the energy generated by the wind is very cheap," said Connie Hedgard, EU Commissioner for Climate Action. There is a lot of skepticism about this claim. Energy associated with wind is cheaper than other renewable energy sources, which are not as effective as wind energy, such as solar, tidal and ethanol, but wind energy lacks competitiveness if it is competitive. We had to spend huge sums of money to support them. For example, in the UK, the cost of energy associated with wind is much higher than other energy sources. According to the list of UK electricity generation costs for 2010 calculated on the basis of the cost per kilowatt hours produced, wind energy is 20,200 more expensive Compared to the cheapest fossil fuel options, and even this is much lower than the real estimate. As Britain and other developing countries scrambled to build more wind turbines, it was natural for them to start with places that were more windy and leave poorer places to a later period. At the same time, people were increasingly protesting against wind farms in their areas. Local opposition has tripled in the last three years and public satisfaction has been reduced by more wind farms. Given the growing public alarm, most of the future increase in wind turbines is expected to be at sea as there is less opposition there but the cost is much higher. The European Union has promised its "20-20-20" policy that by 2020 it will reduce carbon emissions by 20 per cent below 1990 levels and increase its reliance on renewable sources by 20 per cent. For Britain, this requires a dramatic increase in wind power, especially at sea. The cost of expanding the wind turbines to 40 GW to provide 31 per cent of electricity by 2020 would cost an estimated £ 75 billion, or $ 120 billion. The benefits of addressing global warming are still very low - only 86 megawatts of CO2 a year for two decades. As for the unavoidable rise in temperature, it would be negligible. Even if we used a standard climate model, big British spending would delay global warming for only 10 days. The cheapest back-up power source provided by open-cycle power plants suggests more carbon dioxide emissions, so wind power will ultimately be more expensive and reduce emissions less than official estimates (which is why simple calculations based on the cost of kilowatt-hours per hour Are usually very misleading which helps make the wind and other intermittent sources look cheaper than they really are). This has been evident in recent reports by KPMG / Mercados and Civitas, an independent research institution. A new report by Gordon Hughes of the University of Edinburgh for the Global Warming Policy Foundation estimates that 36 gigawatts of new wind power would cost 120 billion pounds to get a reduction of 23 megatonnes of carbon dioxide per year - in other words, the rise in temperature will be delayed by 66 hours Only by the end of the century. But the lesson is clear: if the goal is not only to reduce carbon dioxide emissions, but also to use renewable energy to do so, these models show that the cost will increase to £ 188 billion for this decade and £ 36 billion per year after 2020. The insistence on wind energy means using totally competitive energy and not only avoiding climate change and costing only £ 92 billion to Britain.

Thank you Dr. Fatima Faiq for your relevent analysis

Global warming is a multifaceted problem and using renewable energy can be a passive contributor to it if not direct. The reason being with careful planning, renewable energy and clean energy options can offer increased energy efficiency and storing energy for use later will help pave the way. further, the emissions are considered to be far lesser as prescribed by many studies.

Thank you dear Priyakrushna Mohanty

Right now very little if ignored contribution.

Thank you

Good intervention

The topic is of great importance

Renewable energy is good but is very connected to the weather conditions

Thank you for your relevent intervention Elma Satrovic

There are a lot of contributions of renewable energy to reduce the warming of the greenhouse, however, it's technology stay expansive for developing countries. It may be more efficient if the industrial country reduces the cost of renewable technology.

Renewable energy is one of the very good solution to prevent the global warming.