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• Andrei Marcu: Are carbon credits effective?

  Alternatives magazine n° 22, 4th quarter 2009 Category: Viewpoint

  Is it possible to reduce greenhouse gas emissions by assigning a value to CO2? That's the concept behind carbon credits. Their advantage: they set targets but let companies decide how to meet them. An opinion from … Read more

• Fuel from algae and CO2

  Alternatives magazine n° 22, 4th quarter 2009 Category: In brief

  American chemical company Dow Chemical and start-up company Algenol Biofuels are partnering to build a new type of biorefinery. The plant, to be built at Dow's plant site in Freeport, Texas, will use the CO2 emissions … Read more

• From utopia to urban ecosystems

  Alternatives magazine n° 22, 4th quarter 2009 Category: Perpectives

  From Milet in Greece to Brasilia in Brazil, politicians have tried to build utopian cities embodying an ideal social organization. Today, these dream cities must also preserve the environment. That is not as difficult … Read more

• China and global warming

  Alternatives magazine n° 22, 4th quarter 2009 Category: Feature

  China and the United States are the world's leading greenhouse gas emitters. When China ratified the Kyoto Protocol in 2002, it was considered to be a developing country and as such has no emissions reduction … Read more

• A new laboratory for utopia: the United Arab Emirates

  Alternatives magazine n° 22, 4th quarter 2009 Category: Perpectives

  The ideal cities of tomorrow may well be found in the desert. In the United Arab Emirates, for example, where in 2006 Abu Dhabi announced its plan to invest 10 billion euros in a model eco-friendly city called Masdar (“… Read more

• G20 countries looking to end fossil energy subsidies

  Alternatives magazine n° 22, 4th quarter 2009 Category: Feature

  At the late September summit in Pittsburgh, the G20 countries, which include the most industrialized countries as well as the large emerging countries of China, India and Brazil, agreed to phase out subsidies for fossil… Read more

• Wave power

  Alternatives magazine n° 22, 4th quarter 2009 Category: Decoding

  The energy potential of waves is viewed as highly promising because it is easier to build floating facilities than submerged ones, as would be the case for other ocean energies. They could deliver from 1.3 to 2 TW1, or … Read more

• Solar-powered ferries in Hong Kong harbor

  Alternatives magazine n° 22, 4th quarter 2009 Category: In brief

  In November 2009, the sun started powering some of the ferries that cross Hong Kong's harbor. The boats are equipped with solar panels that can supply up to 75% of the power needed to operate them, and a diesel engine … Read more

• Ocean energies not yet full speed ahead

  Alternatives magazine n° 22, 4th quarter 2009 Category: Decoding

  With about 71% of the earth's surface covered with oceans, could “blue coal” constitute our biggest and surest source of energy? Some day, perhaps… But there's still much to do. The gigantic, intrinsically renewable … Read more

• Global warming: What are the challenges for Copenhagen?

  Alternatives magazine n° 22, 4th quarter 2009 Category: Feature

  The Kyoto Protocol was adopted in 1997 and, following a long ratification process, went into effect in 2005. Under the Protocol, 200 countries have committed to reducing their greenhouse gas emissions (GHG) by 2012. … Read more

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