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dpurdy

Hydrogen vehicle - Wikipedia, the free encyclopedia - 13 views

    • dpurdy
       
      Is hydrogen sustainable? depends on the source. see this highlight.
  • While methods of hydrogen production that do not use fossil fuel would be more sustainable
  • The challenges facing the use of hydrogen in vehicles include production, storage, transport and distribution.
  • ...3 more annotations...
  • The hydrogen infrastructure consists mainly of industrial hydrogen pipeline transport and hydrogen-equipped filling stations like those found on a hydrogen highway. Hydrogen stations which are not situated near a hydrogen pipeline can obtain supply via hydrogen tanks, compressed hydrogen tube trailers, liquid hydrogen tank trucks or dedicated onsite production.
  • Hydrogen use would require the alteration of industry and transport on a scale never seen before in history. For example, according to GM, 70% of the U.S. population lives near a hydrogen-generating facility but has little access to hydrogen, despite its wide availability for commercial use.[64] The distribution of hydrogen fuel for vehicles throughout the U.S. would require new hydrogen stations that would cost, by some estimates approximately 20 billion dollars[65] and 4.6 billion in the EU.[66] Other estimates place the cost as high as half trillion dollars in the United States alone.[67]
  • Hydrogen fuel does not occur naturally on Earth and thus is not an energy source, but is an energy carrier. Currently it is most frequently made from methane or other fossil fuels. However, it can be produced from a wide range of sources (such as wind, solar, or nuclear) that are intermittent, too diffuse or too cumbersome to directly propel vehicles. Integrated wind-to-hydrogen plants, using electrolysis of water, are exploring technologies to deliver costs low enough, and quantities great enough, to compete with traditional energy sources.[2]
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    Fuel cell cars are expensive.  The fuel cell costs a lot
Colin Dixon

Oil is NOT a "fossil fuel" - YouTube - 2 views

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    why do you think oil is fossil fule, where is the proof
Martin Burrett

Enercities - 36 views

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    This is a superb environmental game which is reminiscent of the early SimCity games. Build a wonderful town, manage your fossil fuels wisely and keep the inhabitants happy. A free sign up is required. ictmagic.wikispaces.com/PSHE%2C+RE%2C+Citizenship%2C+Geography+%26+Environmental
Justin Medved

PopTech 2009: Michael Pollan on "sustainable food" - 30 views

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    Author and activist Michael Pollan is a passionate advocate for sustainable food. In his compelling talk at PopTech, he explores how our industrial food system is keeping us overly dependent on fossil fuels, destroying our environment, and making us sick. Breaking this cycle requires fundamentally changing our relationship to food - and eating more meals together. - awesome!
Rina Almarez

DON'T WORRY, DRIVE ON: Fossil Fools & Fracking Lies - 2 views

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    Vimeo video about one side of oil usage;.
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