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Domain: gdrc.org

Stories and comments across the archive that link to gdrc.org.

Comments · 9

  1. Re:Record breaking by Anonymous Coward · · Score: 0 · on Solar Power Minus the Light

    sure there is http://www.gdrc.org/uem/co2-cal/co2-calculator.htm l

  2. Re:E85 costs more than regular gas! by farmerj · · Score: 2, Interesting · on Bio-diesel Made from Sewage
    Depends on what you mean by energy replenishment, lots of energy is coming in from the sun every day.

    Biofuels are about converting solar energy to useful power sources so in that sense there is fast enough replenishment.

    As for net energy from energy crops, LCA can be used to calculate the total energy required to produce a litre of transport fuel (petrol or diesel).

    This UK study from 2003 found net energy gains from the production of biodiesel.

    From that study:

    For each MJ of biodiesel produced 0.025Kg of CO2 is released.
    For each MJ of fossil diesel produced 0.087Kg of CO2 is released.
    Significant reduction in net CO2 emissions from biodiesel
  3. Don't Waste Your Time by Ranger · · Score: 1 · on The Cure for Information Overload

    I got sent the retarded email. Gave up after three clicks and googled it. Here's the actual link. Not that I read the worthless piece of crap: http://www.gdrc.org/icts/i-overload/cure.html

  4. link fixed: by mblase · · Score: 2, Informative · on The Cure for Information Overload

    http://www.gdrc.org/icts/i-overload/cure.html

    Thanks for ruining my fun, Google.

  5. what a fucking idiot by Anonymous Coward · · Score: 0 · on Using Barges to Fight Global Warming

    unfortunately the little ice this wacko struggles to sustain with all his motorboats may actually inhibit the natural absorption of CO2 into the ocean. ...oh shucks and then there are those damn climate cycles

  6. Steal it by mattr · · Score: 2, Insightful · on Earth's Copper Supply Inadequate For Development?
    From UN University Insitute of Advanced Studies Working Paper 24 on "Informal Recycling and Collection of Solid Wastes in Developing Countries: Issues and Opportunities":
    In several Mexican localities, thieves steal telephone and electrical copper wires, cutting it off from existing lines in order to be melted down and recycled (Jaramillo, 1995; Medina, 1995; Rejon, 1995; Santacruz, 1995). Stealing of copper wire has also been reported in New York City's subways (Faison, 1993) and in transmission lines for Russian trains (Anon., 1994c)
  7. Re:More details and animation by phaggood · · Score: 1, Interesting · on Wave Powered Generator to Power Homes

    > 1 square km for 20,000 households; 20sq km for a city of Edinburgh

    So, 20sq km for 450K folk, or roughly 13,000sq km for the US. US Coastline is 6000 km w/o Alaska, or 13K with Alaska. A double line of these off Alaska's coast would about do it for the US. How far off the coast should these be?

    Of course, entire ocean's about 320M sq km, and we've had transoceanic communication cables a hundred years before my birth...

  8. Re:Good goal? by fm6 · · Score: 5, Insightful · on The Hundred-Buck PC

    Sure, there are billions who can't afford to buy one of these. But somebody in their village or neighborhood will get a micro-loan and pay it back by selling access to their neighbors. This is already happening with other technology.

  9. Sheesh! by sanityspeech · · Score: 0, Offtopic · on Technorati Does Tags

    How does this help with information overload?