Spot On

Q Green future RENEWABLE ENERGY Word Power in Spotlight 8/07 (page 65) is about renewable sources of energy. On the following two pages you can learn how to talk about these alternatives to fossil fuels, and about other ways to save energy.

1. THE BEAUTY OF RENEWABLES Which renewable energy source is referred to in each example below? biomass • geothermal power • hydropower • solar power • wind power a) There’s hot water in aquifers underground. The geysers we saw in the US are like natural steam engines. _____________________ b) People say they’re ugly and loud. But wind farms can be built offshore. They’re more expensive to install and service there, but more effective. _____________________ c) It sounds so simple: burning organic waste as fuel; and crops like corn or sugar cane can be converted into biofuel. _____________________ d) There’s a dam on one side of the reservoir. When they open the sluice gates, the water is channelled through and turns the turbines. _____________________ e) We get plenty of sun here. We sell the electricity to the power grid and will recoup our investment in about ten years. _____________________

2. WHAT EVERYBODY’S TALKING ABOUT Combine words from the two boxes below to form common expressions in discussions about the need to reduce greenhouse gases. Write the expressions next to their definitions. climate energy ecological sustainable emissions a) b) c) d) e)

__________ __________ __________ __________ __________ __________ __________ __________ __________ __________

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change footprint conservation trading development

Managing energy resources to avoid waste. The total impact a person has on the environment. Warmer, colder or more extreme weather. Managing natural resources to ensure their preservation. Countries or companies buying the right to pollute more from others who pollute less.

3. WHAT YOU CAN DO Choose the correct words to complete the environmental tips below. a) b) c) d) 4 Spotlight

Choose products with less packeting / packaging. Use energy-saving / -sparing light bulbs. Buy a hybrid car or one with better fuel effectiveness / efficiency. Buy household appliances with low energy consumption / consummation. July/August 2007

plus 4. A GREEN HOUSE One way to save energy in the long term is to build a house that is environmentally friendly. Choose the correct words from the box to complete the dialogue below. absorb • aspect • certified • circulate • collect • cross-ventilation • fans • generate • insulation • investment • land • overhanging • utility

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You’re thinking of building a low-energy house? What are you planning? We’re looking into different options. First we’ll need the right piece of a) __________, maybe with a slope and trees for wind protection. Then the orientation of the house will be important. A long side with thermally glazed windows and a southern b) __________ is best. What materials are you going to use? We’ll use a lot of c) __________ wood from sustainable forestry. And we’ll have walls with thermal mass made of materials that d) __________ heat during the day and release it into the house at night. I’ve heard there are passive and active solar houses. What’s that all about? A passive solar house uses no conventional energy to power mechanical equipment for heating, cooling or ventilation. Instead, heat from the sun is stored and used to e) __________ warm or cool air around the house. An active solar house might use some machines like pumps or f) __________. We’ll certainly try to g) __________ rainwater and have photovoltaic modules on the roof to h) __________ electricity. We’ll see what we can afford. I’m sure the house design is important, too, when it comes to saving energy. Of course. An i) __________ roof to the south, for example, would block out summer sun but let in the lower winter sun. Windows should be positioned for good j) __________ — so they will allow the air to circulate. And proper k) __________ is crucial, making the house airtight. You don’t want heat to escape. Is this going to be really expensive? Our initial l) __________ might be higher than for a conventional house. But we’ll save on m) __________ bills later. And we’ll have a clear conscience and enjoy the “feel-good factor” for the rest of our lives.

5. TRANSLATION TIME Using words you’ve learned in the above exercises, translate the following sentences: a) Treibhausgase von fossilen Brennstoffen verursachen Erderwärmung. _____________________________________________________________________ b) Wir sollten alle unseren Energieverbrauch reduzieren. _____________________________________________________________________ c) Ich investiere viel jetzt, werde aber später niedrigere Nebenkosten zahlen. _____________________________________________________________________ d) Ich kaufe nur Holzprodukte aus nachhaltiger Forstwirtschaft. _____________________________________________________________________ Answers on pages 22–23 July/August 2007

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