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Modern civilisation is completely dependent on energy, which has therefore to be abundant and also economical. About 85% of the world's energy is supplied by oil, coal and natural gas while nuclear, hydro, wind and solar power and biomass supply the rest. Coal, nuclear and hydro are used primarily to generate electricity while natural gas is widely used for heating. Biomass is used both for heating and cooking. The wind and solar power is the future's hope as they are sustainable energy sources. Oil powers almost all machines that move and that makes oil uniquely versatile. Oil powered airplanes carry 500 people across the widest oceans at nearly the speed of sound. Oil powered machines produce and transport food. Oil powered machines are ubiquitous. Clearly, we live in the age of oil but it is drawing to a close. According to data available if oil production remains constant until it's gone, there is enough to last 42 years. Oil wells will produce less as they become depleted, which will make it impossible to keep production constant. Similarly natural gas and coal will last another 61 years and 133 years respectively. Naturally, as they become scarce, they become expensive, leading to a worldwide energy crisis. If we are to survive on this planet, we have to make a transition to sustainable energy sources. The transition may be willy-nilly or planned - the choice is ours.

The dawning era of limited and expensive energy will be very difficult for everyone on earth but will be even more difficult if it is not anticipated. It is of utmost importance that the public and policymakers understand the global energy crisis and act in tandem to ensure that the species 'homo sapiens' does not become extinct.

The survival of mankind will depend on

Filed Under: English
Exam Prep: Bank Exams

The first two steps in the lithification process are

Filed Under: Chemistry
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Value added can be determined by

Subject: Indian Economy Exam Prep: AIEEE , Bank Exams , CAT
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Project Communications Management

What are the Project Management Processes included in the Project Communications Management?

Subject: PMP Certification

Explain the concept of the batched operating systems?

Subject: Operating Systems

The first thing to be affected by alcohol is

Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT
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Which Indian armed force has conducted ‘Exercise Topchi 2019’?

Filed Under: General Awareness
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Which company received the award as one of the 2019 World’s Most Ethical Companies?

Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO