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2)Green Roofs Shown to Offset Warming: Discovery News

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3) Discovery News
October 6, 2009



5) Ch. 19, 20



6)Global


7) One of the most recent attacks proposed to fight the problem of global warming is filling rooftops with soil and plants. Naturally, you associate plants with taking in carbon dioxide which would be the main goal but the green roofs carry many other added benefits. These include absorbing and reflecting heat in the summer, acting as insulation in the winter, and soaking up rainwater to prevent flooding. These green roof tops would also reduce air pollution, noise pollution, and provide a habitat for some animals. All of these benefits last a long time except for removing carbon from the atmosphere. This does not last because the carbon emitted from the soil after matter is decayed balances out the carbon taken from the atmosphere by the plants in about 2 years. Although this seems to be a short amount of time, the results would make the project worthwhile.

8) I think that having green roof tops in the cities would be a really great idea because of all the major benefits it seems to hold. There is so much roof space in the cities across the world, it would be foolish not to put them to good use.

9) plant biomass: plant matter grown to produce electricity or heat