Next is an example of an authentic summary done by Year 10 student, Salvian Reynaldi's <salzzz.reynald[at]ymail.com> from National Geographic Magazine (online).  Details ...

Energy Conservation-National Geographic Magazine
March 2009 edition (online).

    These days the number of people who concern about global warming are growing fast. They are trying to reduce the Carbon Dioxide emission. The average household production of CO2 is about 150 pounds a day from turning on air-conditioner or driving cars, so how much could we reduce? Tim Flannery, author of The Weather Makers, challenges readers to reduce their personal CO2 emmision to keep the world from reaching global warming peak, such as the melting of the ice sheets in Greenland. To reduce the effect of global warming we need to reduce CO2 emissions by 80% even stop them. To do so, we need to change our old lifestyle, such as wasting energy. Can we do that?

Original article (only page 2):
Energy Conservation-National Geographic Magazine
Source: 
http://ngm.nationalgeographic.com/2009/03/energy-conservation/miller-text/2

     People decided to try an experiment for reducing emission of CO2. For one month they tracked personal emissions of carbon dioxide (CO2) as if they were counting calories. They wanted to see how much they could cut back, so they put theirselves on a "strict diet". The average U.S. household produces about 150 pounds of CO2 a day by doing commonplace things like turning on air-conditioning or driving cars. That's more than twice the European average and almost five times the global average, mostly because Americans drive more and have bigger houses. But how much should we try to reduce?

     For an answer, I checked with Tim Flannery, author of The Weather Makers: How Man Is Changing the Climate and What It Means for Life on Earth. In his book, he'd challenged readers to make deep cuts in personal emissions to keep the world from reaching critical tipping points, such as the melting of the ice sheets in Greenland or West Antarctica. To stay below that threshold, we need to reduce CO2 emissions by 80 percent. Can we really do that?

     It seemed unlikely to me too. Still, the point was to answer a simple question: How close could they come to a lifestyle the planet could handle? If it turned out they couldn't do it, perhaps they could at least identify places where the diet pinched and figure out ways to adjust. So they agreed to shoot for 80 percent less than the U.S. average, which equated to a daily diet of only 30 pounds of CO2. Then they set out to find a few neighbors to join us.

     John and Kyoko Bauer were logical candidates. Dedicated greenies, they were already committed to a low-impact lifestyle. One car, one TV, no meat except fish. As parents of three-year-old twins, they were also worried about the future. "Absolutely, sign us up," John said.

    They started on a Sunday in July, an unseasonably mild day in Northern Virginia, where they live. A front had blown through the night before, and I'd opened our bedroom windows to let in the breeze. They had gotten so used to keeping our air-conditioning going around the clock, I'd almost forgotten the windows even opened. The birds woke us at five with a pleasant racket in the trees, the sun came up, and our experiment began.