Image:CO2 responsibility 1950-2000.svg

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Description

Cumulative per capita responsibility for anthropogenic CO2

Data from the World Resources Institute's CAIT 4.0 database (registration required). Includes CO2 emitted up to the year 2000 only (not CH4, N20, PFCs, HFCs or SF6). Estimates of the effects of land-use change are included; bunker-fuel emissions are not. The scale is a 0-100 decay-weighted index.

The land-use estimates include the following (list from the relevant CAIT data note):

  • Clearing of natural ecosystems for permanent croplands (cultivation)
  • Clearing of natural ecosystems for permanent pastures (no cultivation)
  • Abandonment of croplands and pastures with subsequent recovery of carbon stocks to

those of the original ecosystem

  • Shifting cultivation (swidden agriculture) (repeated clearing, abandonment, and reclearing

of forests in many tropical regions)

  • Wood harvest (industrial wood as well as fuel wood) - it is important to note that these

estimates include the emissions of carbon from wood products (burned, stored in longterm pools, decayed over time)

  • For the U.S. only, management of wildfires and woody encroachment

Also from the CAIT data note: "It is also important to note that the calculated flux of carbon does not explicitly include changes in carbon stocks that may result from various forms of management. Examples of what is not included are agricultural intensification, fertilization, the trend to no-till agriculture, thinning of forests, changes in species or varieties, and other silvicultural practices."

And the data note warns that "these estimates of national sources and sinks of carbon from land-use change are uncertain on the order of +/- 150% for large fluxes, and +/- 50 MtC/yr for estimates near zero."

So CAIT's land-use estimates are a bit wild.

They are are, however, the best currently available at a national level. The world's wiseacres need the world's best data, else they are making themselves vulnerable to disappointment and disenchantment. Carbon dioxide from land-use change is at least as important a contributor to anthropogenic GHG emissions as the methane attributable to livestock-rearing - about a fifth of the total give or take a tenth in each case (with some overlaps). Those who would pronounce on global warming deserve a more complete picture of its causes than is currently offered almost everywhere - "greenhouse gas emissions" almost always means "carbon dioxide from the burning of fossil fuels". Burning fossil fuels is certainly most of the current story, but it's by no means the whole thing. Hence this map.

Source

self-made using data from the World Resources Institute and a blank map by Canuckguy and others

Date

05/9/07

Author

Vinny Burgoo

Permission
( Reusing this image)

see below


I, the copyright holder of this work, hereby publish it under the following license:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled " GNU Free Documentation license".

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File history

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Date/Time Dimensions User Comment
current 23:22, 4 September 2007 940×477 (1.98 MB) Vinny Burgoo ({{Information |Description='''Cumulative per capita responsibility for anthropogenic CO2''' Data from the World Resources Institute's [http://cait.wri.org/ CAIT 4.0 database] (registration required). Includes CO2 only (not CH4, N20, PFCs, HFCs or SF6). E)
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