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mission:log:2012:02:03:is-burning-wood-bad [2015-04-10 10:04] – [Conclusion] chronomission:log:2012:02:03:is-burning-wood-bad [2023-04-19 13:58] (current) – [How much is that in area] chrono
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 ===== Domestic fuelwood consumption worldwide ===== ===== Domestic fuelwood consumption worldwide =====
  
-Wood used to be the traditional primary energy source of all people for Millenia until the industry nations started to rely heavily on coal, followed by the electrification of households. On the other hand, many developing nations still rely on fuelwood as primary energy source. Therefore, the first step is to find multiple sources to assess, how much wood was, is and is going to be used as primary energy source in households worldwide.+Wood used to be the traditional primary energy source of all people for Millenia until the industry nations started to rely heavily on coal, followed by the electrification of households. On the other hand, many "developing" nations still rely on fuelwood as primary energy source. Therefore, the first step is to find multiple sources to assess, how much wood was, is and is going to be used as primary energy source in households worldwide.
  
 **Estimations of world fuelwood consumption made during the 1990s (million m³ p.a.)** **Estimations of world fuelwood consumption made during the 1990s (million m³ p.a.)**
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 <newcolumn> <newcolumn>
  
-<x 12>+<m 12>
 v = ( {dwh^{2}}/{1000}+{dwh^{2}}/{1000} ) * (h-nh) * vcp v = ( {dwh^{2}}/{1000}+{dwh^{2}}/{1000} ) * (h-nh) * vcp
-</x>+</m>
  
 </columns> </columns>
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 \\ \\
 \\ \\
-<x 15>+<m 15>
 ( {25^{2}}/{1000}+{25^{2}}/{1000} ) * (25-25) * 3% \approx 0.63 ( {25^{2}}/{1000}+{25^{2}}/{1000} ) * (25-25) * 3% \approx 0.63
-</x>+</m>
  
 <newcolumn> <newcolumn>
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 \\ \\
 \\ \\
-<x 17>+<m 17>
 {1605000000}/{({1+0.63}/2)} \approx 1969325153 {1605000000}/{({1+0.63}/2)} \approx 1969325153
-</x>+</m>
  
 </columns> </columns>
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 ==== How much is that in area ==== ==== How much is that in area ====
  
-Assuming 1 tree occupies an average area of 20m²: +Assuming 1 average tree occupies an area of 20m²:
- +
-1.97 bill * 0.000020 km² = 39400 km² = Size of Switzerland +
  
 +<m 17>
 +1969325153 * 0.000020 km^2 \approx 39386 km^2
 +</m>
  
 +This is equivalent to the size of Switzerland.
  
 ==== How much is that in people? ==== ==== How much is that in people? ====
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 ==== Analysis ==== ==== Analysis ====
  
-Although newer data indicates, that the consumption levels are lower than the 1990 projections, all projections have one thing in common: Unless humankind develops alternative, sustainable & clean energy sources, available to //everyone// worldwide, fuelwood will continue to be the only available energy source for more than a quarter of the population on the face of the earth. These people rely on it to survive and have no alternative to seize, in order to minimize the impact their actions may have on their environment for at least another 20 years. +Although newer data indicates, that the consumption levels are lower than the 1990 projections, all projections have one thing in common: Unless humankind develops alternative, sustainable & clean energy sources, available to //everyone// worldwide, fuelwood will continue to be the only available energy source for more than a quarter of the population on the face of the earth. These people rely on it to survive and have no alternative to seize, in order to minimize the impact their actions may have on their environment and their own health for at least another 20 years. 
  
 ===== Consequences ===== ===== Consequences =====
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 ~~CL~~ ~~CL~~
  
-<blockquote>As a soil amendment, biochar significantly increases the efficiency of, and reduces the need for, traditional chemical fertilizers, while greatly enhancing crop yields.<cite>[[http://http://www.biochar-international.org/|International Biochar Initiative (IBI)+<blockquote>As a soil amendment, biochar significantly increases the efficiency of, and reduces the need for traditional chemical fertilizers, while greatly enhancing crop yields.<cite>[[http://http://www.biochar-international.org/|International Biochar Initiative (IBI)
 ]]</cite></blockquote> ]]</cite></blockquote>
  
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