Natural resources are in limited amount and it takes millions of year(sometimes exceeds 650 million years) to transform buried dead organism to fossil fuel. So sooner or later one day the world will be out of fossil fuel and may be then we have to dependent only on Renewable Energy Sources. It has been said that global crude oil production is on its peak and is declining day by day. Peaking is a simple concept. Generally graph of uses of any natural resource is like bell shape, first it increases gradually until it reaches to it’s peak and then gradually decreases and finally ends up and we switch to another. Now oil production is on it’s peak and it is said that in few decades we will be ”out of oil”. The decline rate is expected to accelerate 10% per year by 2030.
The peak is reached when resources becomes difficult to extract or cost goes very high because of high extraction price or shortage. Sometimes peak comes when one fuel is replaced by other cheaper and better fuel. Unfortunately, this time we don’t have cheaper or better option for oil.
Natural gas is likewise expected to reach on it’s peak around 2010-2020 and coal around 2020-2030. Natural gas and coal itself contribute 86% of world’s primary energy source. By the end of this century nearly all the easily recoverable fossil fuel will be gone and the world will suffer the shortage of these fuels. Right now we have the options of renewable energy source like wind, solar and geothermal but these contribute only 2%. So we have to research and develop renewable sources such that they can contribute a good percent but expert are saying the gap of fossil fuel would not be filled by only these.
The coming shortage of fossil fuel is just like energy crisis and it will be the most serious crisis, the world has ever faced. We have to think of proper use of energy and more and more energy saving techniques. America which has 2% of world’s population, uses 25% of it’s fuel. We have to re-localized many things. The food we eat comes from distant with a huge amount of wastage of fuel. In many places in world people eat each calorie at the cost of 10 calorie fuel. Much more fuel goes waste in transportation. Public transport should be used more instead of people running super luxury very low mileage cars wasting a lot of fuels. Metro trains are good because they are comfortable, takes less time and no fuel is wasted in traffic.
In theory the earth renewable energy sources wind, solar, geothermal and marine can produce more energy than the word uses daily. So we should develop techniques to better harvest these sources.
There are much more advantages of using renewable energy like it will provide us a pollution-free environment, safer , healthier, more resilient and equitable world.
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