Notes:
efficient 能率的である，効率が良い;
return ticket (英)往復キップ（アメリカ英語では「round trip ticket」）;
less hassle 問題が少ない;
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There are many cultural differences between England and Japan, and as a foreigner living abroad I cannot but help make comparisons. Without a doubt Japanese trains and buses are much more efficient than England’s. There is, however, one big difference – the ability to buy a return ticket. Whilst it is possible to buy a return ticket on the Shinkansen, it is impossible for most other forms of transport. In the UK, for example, one can get a single ticket from my home town Orpington to London for ￡5 pounds or a return for ￡5.40! The benefits of a return ticket are obvious – it is both cheaper, and less hassle. This is good for the customer and encourages more people to travel on public transport. (by Prof. Simon Smith)
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Notes：
greenhouse gas グリーンハウスガス，温室（効果）ガス;
straightforward 簡単な，分かり易い;
the amount of carbon debt （地球温暖化）炭酸ガス排出量;
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Have you ever heard that coal-burning power plants cause more greenhouse gases than any other kind of plant? A new, six-month study in Massachusetts found that wood-burning power plants may actually release more gases than coal-burning plants over time. The conclusion isn’t as straightforward as it might seem because the calculation is based on the amount of carbon removed by forests and the amount of carbon debt (the carbon put into the atmosphere when the trees are burned). In other words, because there are fewer trees to clean the air, burning trees can actually be worse than using coal. (by Prof. Carmella Lieske)
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