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The reading passage and the lecture discuss various aspects concerning hydrogen energy’s efficiency. For the most part, while the reading passage states that hydro energy will make positive effect on our society, the lecturer claims that the suggestion in the reading passage is unfounded due to the following three reasons.
the first point made by the reading passage is that hydrogen is plentiful element on earth, hydrogen energy is much cheaper than fossil fuel which will be depleted in the future. The lecturer, however, challenge this viewpoint by arguing that the cost of generating hydrogen energy is not cheap. He says hydrogen is more expensive than gasoline.
The next point of the reading passage is that hydrogen is environmentally friendly. On the other hand, the lecturer claims that since electricity is needed to obtain hydrogen, it can not be said hydrogen is eco-friendly. Also, renewable source of energy to obtain hydrogen is not always possible.
Finally, it is stated in the reading that hydrogen is easy to store and transport. In contrast, the lecturer argues that hydrogen is really difficult to deal with. This is because hydrogen is volatile and hydrogen alloy is too heavy to carry.