anchor.diff:  
             <p class='credits'><strong>Citation:</strong> Hansen, M. C., P. V. Potapov, R. Moore, M. Hancher, S. A. Turubanova, A. Tyukavina, D. Thau, S. V. Stehman, S. J. Goetz, T. R. Loveland, A. Kommareddy, A. Egorov, L. Chini, C. O. Justice, and J. R. G. Townshend. 2013. “High-Resolution Global Maps of 21st-Century Forest Cover Change.” <em>Science</em> 342 (15 November): 850–53.</p>
   
  -          <p class='credits'><strong>Suggested citations for data as displayed on GFW:</strong> Hansen, M. C., P. V. Potapov, R. Moore, M. Hancher, S. A. Turubanova, A. Tyukavina, D. Thau, S. V. Stehman, S. J. Goetz, T. R. Loveland, A. Kommareddy, A. Egorov, L. Chini, C. O. Justice, and J. R. G. Townshend. 2013. “UMD Tree Cover Loss and Gain Area.” University of Maryland and Google. Accessed through Global Forest Watch on [date]. <a href='http://www.globalforestwatch.org' target='_blank'>www.globalforestwatch.org</a>.</p>
  +          <p class='credits'><strong>Suggested citations for data as displayed on GFW:</strong> Hansen, M. C., P. V. Potapov, R. Moore, M. Hancher, S. A. Turubanova, A. Tyukavina, D. Thau, S. V. Stehman, S. J. Goetz, T. R. Loveland, A. Kommareddy, A. Egorov, L. Chini, C. O. Justice, and J. R. G. Townshend. 2013. “Hansen/UMD/Google/USGS/NASA Tree Cover Loss and Gain Area.” University of Maryland, Google, USGS, and NASA. Accessed through Global Forest Watch on [date]. <a href='http://www.globalforestwatch.org' target='_blank'>www.globalforestwatch.org</a>.</p>
   
             <p class='read_more hidden'><em><%= link_to 'Learn more or download data', sources_path %></em></p>
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positive.code:     <p>Data on the economic value and employment in national forestry sectors are reported from “Contribution of the forestry sector to national economies, 1990-2006” by A. Lebedys. Forest Finance Working Paper FSFM/ACC/08. FAO, Rome. To learn more, <a href='ftp://ftp.fao.org/docrep/fao/011/k4588e/k4588e00.pdf' target='_blank'>download the full report</a>.</p>
      <p><strong>Figures:</strong> type of forest, economic value of the forestry sector, employment, carbon stocks, emissions</p>
  
      <h3 class='overview_title'>University of Maryland (UMD)</h3>
      <p>Figures for tree cover extent, loss, and gain presented on the country and global overview pages were calculated using tabular data from a 2013 publication, “<a href='http://www.sciencemag.org/content/342/6160/850' target='_blank'>High-Resolution Global Maps of 21st-Century Forest Cover Change</a>" by Hansen <em>et al</em>.</p>
  
      <p>To learn more, visit the <%= link_to 'Forest Change tab', "#{sources_path}#forest_change" %> on the Data page.</p>
  
      <p><strong>Figures:</strong> UMD circle graphs, 2012 tree cover extent, all global overview graphs and rankings</p>
  
      <h3 class='overview_title'>European Space Agency (GlobCover)</h3>
      <p>Data from the European Space Agency’s GlobCover was used to visualize tree cover extent on the country pages. As stated on the <a href='http://due.esrin.esa.int/globcover/' target='_blank'>ESA website</a>, GlobCover is an initiative which began in 2005 in partnership with a number of organizations. The aim of the project was to develop a service capable of delivering global composites and land cover maps using input observations from the 300m MERIS sensor on board the ENVISAT satellite mission. ESA makes available the land cover maps, which cover 2 periods: December 2004 - June 2006 and January - December 2009. To learn more, visit the <a href='http://due.esrin.esa.int/globcover/' target='_blank'>GlobCover website</a> or <a href='http://due.esrin.esa.int/globcover/LandCover2009/Globcover2009_V2.3_Global_.zip' target='_blank'>download the 2009 GlobCover map</a>.</p>
  
negative.code:         </div>
  
          <div class='source_table'>
            <p>Drag the handle to adjust the minimum tree cover canopy (TCC) density for the visualization and analysis of UMD/Google tree cover loss and extent. TCC density represents the estimated percent of a UMD/Google pixel that was covered by tree canopy in the year 2000, as determined from the analysis of satellite imagery. For the tree cover loss data, TCC density therefore corresponds to the density of tree cover before loss occurred. For example, if you select 25% as the minimum TCC density, you will only see tree cover loss pixels for which the original tree cover density was greater than 25%.</p>
            <p>Adjustments to the minimum TCC density only affect UMD/Google tree cover loss and extent data layers. This feature does not pertain to UMD/Google tree cover gain or to other GFW data layers or statistics. UMD/Google tree cover gain is displayed with a set minimum TCC density greater than 50%. The minimum TCC density cannot be changed independently for loss and extent. A change made to one data layer will immediately take effect in the other.</p>
            <p>This feature is also available for statistics within the country and global overview pages. However, the adjustment made to the visualization and analysis through the map view will not be automatically reflected in other areas of the website. To adjust the minimum TCC density within the country and global overview pages, click on the settings icon.</p>
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