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View Diary: Frozen Planet and a fast solution for Climate Change (46 comments)

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  •  I am looking forward to the series. But (1+ / 0-)
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    Roadbed Guy

    black carbon is not a gas.  It is something we can control at far lower cost than CO2 by reducing coal burning or requiring better controls, and by reducing diesel emmisions.  Since soot dwell time in the atmosphere is short we can have some immediate impact on ice and snow albedo.  Some sources such as forest fires will be difficult to reduce.

    "Black Carbon (BC) has recently emerged as a major contributor to global climate change, possibly second only to CO2 as the main driver of change.[1] BC particles[2] strongly absorb sunlight and give soot its black color. BC is produced both naturally and by human activities as a result of the incomplete combustion of fossil fuels, biofuels, and biomass. Primary sources include emissions from diesel engines, cook stoves, wood burning and forest fires. Reducing CO2 emissions is essential to avert the worst impacts of future climate change, but CO2 has such a long atmospheric lifetime that it will take several decades for CO2 concentrations to begin to stabilize after emissions reductions begin. In contrast, BC remains in the atmosphere for only a few weeks, so cutting its emissions would immediately reduce the rate of warming, particularly in the rapidly changing Arctic. Moreover, reduced exposure to BC provides public health co-benefits, especially in developing countries. Technologies that can reduce global BC emissions are available today."

    Where are we, now that we need us most?

    by Frank Knarf on Thu Mar 22, 2012 at 09:56:37 AM PDT

    •  Couple of things (1+ / 0-)
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      beach babe in fl

      I thought carbon in the form of particulates (e.g. from volcanic eruptions) cause cooling, not warming. Perhaps it has to do with the size of the particles or maybe my info is out of date by now.

      Regardless, for many reasons cutting back on wood burning stoves is a good thing, particularly in unstable areas where wood gathering is a majorly dangerous occupation, particularly for women. Two groups I like donating to, Trees, Water, People, and the Solar Cooker Project are great ways to reduce deforestation and lung problems due to inefficient wood burning stoves.

      As for diesel, how does biodiesel fare when it comes to BC?

      And of course reducing coal burning is a good thing pretty much all around. Personally buy all wind power through the grid (in reality creates the market for building more wind farms). Easy to sign up for and didn't cost much more than the standard petrofuel energy sources.

      FREEDOM ISN'T FREE: That's why we pay taxes. I Had A Thought

      by mole333 on Thu Mar 22, 2012 at 10:18:19 AM PDT

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      •  yes, the cook stove project (1+ / 0-)
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        Wee Mama

        headed by Hillary Clinton in is a good program and will help with some black carbon emissions but the greatest cause of black carbon is fires which are set to clear pasture and cropland for animal feed.  This is main cause of deforestation in Amazon etc. so we can not make good headway in reducing black carbon without addressing anthropologic fires and reducing livestock production.

        Macca's Meatless Monday

        by VL Baker on Thu Mar 22, 2012 at 10:38:31 AM PDT

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      •  Depends how high (2+ / 0-)
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        Wee Mama, radical simplicity

        Carbon black is black, really black, about the blackest thing we can get our hands on.  Becasue of that it absorbs light and radiated heat.

        The particulates from volcanoes are more or less tiny particles of pumice which are usually light in color. The volcano injects them high into the atmosphere where they reflect light and heat back into space. They usually end up so high that they circle the earth, causing the cooling effect.

        BTW, because "blackness" is measured by the amount of light an object reflects, the blackest thing in the solar system is...... the sun.

        Fight poverty, oppression, hunger, ignorance, disease and aggression wherever they occur.

        by Lib Dem FoP on Thu Mar 22, 2012 at 10:46:21 AM PDT

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    •  so you watched the vid..scared to write your (0+ / 0-)

      own diary..afraid we might troll you as you have been doing to most eco

      Macca's Meatless Monday

      by VL Baker on Thu Mar 22, 2012 at 10:56:11 AM PDT

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