Comments on: Climate change increasing subsurface temperatures http://www.cleanbreak.ca/2009/03/09/climate-change-increasing-subsurface-temperatures/ Trends, happenings and innovations in the clean technology market Thu, 18 Mar 2010 22:38:27 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Clean Future Energy http://www.cleanbreak.ca/2009/03/09/climate-change-increasing-subsurface-temperatures/comment-page-1/#comment-4726 Clean Future Energy Mon, 16 Mar 2009 14:46:17 +0000 http://www.cleanbreak.ca/?p=1556#comment-4726 Geothermal seems to be one of the cheapest options available and yet it gets very little press. A function of lobby economics no doubt. If it would really cost just $1 million, surely a power company would be happy to fund it, in return for a first look at all the data. That has to be an investment worth making. Geothermal seems to be one of the cheapest options available and yet it gets very little press. A function of lobby economics no doubt.

If it would really cost just $1 million, surely a power company would be happy to fund it, in return for a first look at all the data. That has to be an investment worth making.

]]> By: kevin legrand http://www.cleanbreak.ca/2009/03/09/climate-change-increasing-subsurface-temperatures/comment-page-1/#comment-4644 kevin legrand Wed, 11 Mar 2009 19:39:41 +0000 http://www.cleanbreak.ca/?p=1556#comment-4644 One notable contradiction is that if the earth is warmer than the air above it; the air temperatures should eventually reflect that change. There is maybe a delay because the earth would release this extra heat slowly. Maybe the temperature differences between the earth and the air reflects this delay. One notable contradiction is that if the earth is warmer than the air above it; the air temperatures should eventually reflect that change. There is maybe a delay because the earth would release this extra heat slowly. Maybe the temperature differences between the earth and the air reflects this delay.

]]> By: kevin legrand http://www.cleanbreak.ca/2009/03/09/climate-change-increasing-subsurface-temperatures/comment-page-1/#comment-4643 kevin legrand Wed, 11 Mar 2009 19:32:56 +0000 http://www.cleanbreak.ca/?p=1556#comment-4643 Apparently this article has drawn a big response at the TORstar website. One point that has been criticized is that the surface air temperature has risen 0.5 degrees since 1990 and the ground temperature has risen 2 degrees (so states this study) and this is a discrepency. Are there reasons for this discrepency grounded in science? Lets look at the modes of heat transfer, convection, conduction and radiation. The sun radiates heat to the earth and it absorbed and scattered by gases in the atmosphere and the surface air. It is also absorbed by the solid earth. Earth is a solid mass and the air is a gas. Solid objects absorb and retain heat much more effectively than gases. This is why energy efficient homes and buildings utilize thermal mass (concrete or stone fixtures). The temperature of the thermal mass becomes warmer than the ambient air around it and therefore radiate this excess heat to the indoor space. Apparently this article has drawn a big response at the TORstar website. One point that has been criticized is that the surface air temperature has risen 0.5 degrees since 1990 and the ground temperature has risen 2 degrees (so states this study) and this is a discrepency.

Are there reasons for this discrepency grounded in science? Lets look at the modes of heat transfer, convection, conduction and radiation. The sun radiates heat to the earth and it absorbed and scattered by gases in the atmosphere and the surface air. It is also absorbed by the solid earth.

Earth is a solid mass and the air is a gas. Solid objects absorb and retain heat much more effectively than gases. This is why energy efficient homes and buildings utilize thermal mass (concrete or stone fixtures). The temperature of the thermal mass becomes warmer than the ambient air around it and therefore radiate this excess heat to the indoor space.

]]> By: Climate change increasing subsurface temperatures « Energy Consulting http://www.cleanbreak.ca/2009/03/09/climate-change-increasing-subsurface-temperatures/comment-page-1/#comment-4637 Climate change increasing subsurface temperatures « Energy Consulting Wed, 11 Mar 2009 09:40:45 +0000 http://www.cleanbreak.ca/?p=1556#comment-4637 [...] FUENTE - Cleanbreak - 09/03/09 [...] [...] FUENTE – Cleanbreak – 09/03/09 [...]

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