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Breaking the habit: From oiloholics to e-totallers

What changes in driving habits and improved batteries might do to oil demand

It has been a bad couple of years for those hoping for the death of driving. In America, where cars are an important part of the national psyche, a decade ago people had suddenly started to drive less, which had not happened since the oil shocks of the 1970s. Academics started to talk excitedly about “peak driving”, offering explanations such as urbanisation, ageing baby-boomers, car-shy millennials, ride-sharing apps such as Uber and even the distraction of Facebook.

Yet the causes may have been more prosaic: a combination of higher petrol prices and lower incomes in the wake of the 2008-09 financial crisis. Since the drop in oil prices in 2014, and a recovery in employment, the number of vehicle-miles travelled has rebounded, and sales of trucks and SUVs, which are less fuel-efficient than cars, have hit record highs.

This sensitivity to prices and incomes is important for global oil demand. More than half the world’s oil is used for transport, and of that, 46% goes into passenger cars. But the response to lower prices has been partially offset by dramatic improvements in fuel efficiency in America and elsewhere, thanks to standards like America’s Corporate Average Fuel Economy (CAFE), the EU’s rules on CO₂ emissions and those in place in China since 2012.

The IEA says that such measures cut oil consumption in 2015 by a whopping 2.3m b/d. This is particularly impressive because interest in fuel efficiency usually wanes when prices are low. If best practice were applied to all the world’s vehicles, the savings would be 4.3m b/d, roughly equivalent to the crude output of Canada. This helps explain why some forecasters think demand for petrol may peak within the next 10-15 years even if the world’s vehicle fleet keeps growing.

Occo Roelofsen of McKinsey, a consultancy, goes further. He reckons that thanks to the decline in the use of oil in light vehicles, total consumption of liquid fuels will begin to fall within a decade, and that in the next few decades driving will be shaken up by electric vehicles (EVs), self-driving cars and car-sharing. […]

(Dated Nov 24th, 2016. From https://www.economist.com/news/specialreport/21710635-what-changes-driving-habits-and-improved-batteries-might-dooil-demand-coming. Accessed July 18th, 2017)

The Pros and Cons of Nuclear Power

Since the disaster at the Fukushima nuclear power plant in Japan in 2011, a debate has been raging (1) the future of atomic energy. Consequently, the safety risks have been well publicized in the global media. But do the risks outweigh the damage that could be done to the planet because of our ongoing addiction to fossil fuels?

Even environmentalists don’t have the answer. They are split over nuclear (2) , and its pros and cons. Some say it is neither safe nor economical because it produces potentially (3) radioactive waste, and reactors are so costly to build. However, others believe nuclear energy is a necessary evil. They say we should continue using it until (4) energy sources, like wind turbines and solar panels, can meet global demand. Supporters also argue that nuclear energy helps cut down on carbon emissions from fossil fuels such as coal and natural gas, which are linked to global warming and pollute the environment. They say this is because nuclear reactors produce a tiny fraction of the carbon dioxide generated by burning coal.

But perhaps the biggest hurdle for atomic energy to overcome is its image problem. Despite industry claims of a strong safety record, critics remain unconvinced because each reactor annually produces up to 30 tons of nuclear waste, which can continue to be radioactive and hazardous for thousands of years. Furthermore, the Chernobyl disaster in 1986 left the public with vivid images of the impact of a nuclear meltdown, including deformed babies, mutated vegetables, and abandoned towns.

While nuclear reactors may continue to be installed in some countries for decades to come, after Fukushima others have decided to rethink their energy policies. For example, the German government has revealed plans for a “green” renewable energy plan, even though it has relied on nuclear power for up to 23 percent of its consumption in the past. It has been announced that all seventeen nuclear power plants would be phased out by 2022. The policy will also promote energy-saving measures encouraging people to insulate their homes, recycle, and reduce waste. Experts argue it could be a risky strategy because Germany doesn’t have natural gas or oil supplies, and coal supplies have been depleted.

Meanwhile, in Brazil, there is just one nuclear plant at Angra dos Reis. Nuclear power represents only three per cent of Brazil’s energy production. After sharp oil price rises in the 1970s, the country’s leaders anticipated future energy supply problems. So they concentrated on developing alternative energy sources including biofuel, hydroelectric schemes, and wind power. 

This approach seems to be working because by May 2012 plans to build more nuclear reactors were shelved by Brazilian officials. The move was welcomed by environmental lobby groups, which had feared a potential ecological catastrophe in case of an accident. If a big country like Brazil, which is the tenth largest energy consumer in the world, can survive and improve its economy without much nuclear power, maybe others can do so, too.

Instruction: Answer question based on the following text.

Fake news: improved critical literacy skills are key to telling fact from fiction

Adapted from https://www.theguardian.com/teacher-network/2017/oct/17/fake-news-improved-criticalliteracy-skills-teaching-young-people 

As questões de números 56 a 60 verificam o domínio do conhecimento sistêmico da língua inglesa. Cada uma das questões apresenta uma frase com uma lacuna. Assinale a alternativa que contém a palavra ou expressão que completa a lacuna de maneira adequada quanto ao sentido e ao uso da norma-padrão da língua inglesa.