anchor.diff:  
           <div class='source_summary'>
             <h3 class='overview_title'>Overview</h3>
  -          <p>The Intact Forest Landscapes (IFL) data set identifies unbroken expanses of natural ecosystems within the zone of forest extent that show no signs of significant human activity and are large enough that all native biodiversity, including viable populations of wide-ranging species, could be maintained. To map IFL areas, a set of criteria was developed and designed to be globally applicable and easily replicable, the latter to allow for repeated assessments over time as well for verification. IFL areas were defined as unfragmented landscapes, at least 50,000 hectares in size, and with a minimum width of 10 kilometers. These were then mapped and identified from Landsat satellite imagery for the year 2013. 
  -
  -<p>Changes in the extent of IFLs were identified by contrasting the map for 2013 with the analogous map for 2000, adjusted for consistency. Areas identified as “reduction in extent” met the IFL criteria in 2000, but no longer met the criteria in 2013. The main causes of change were industrial activity such as logging and mining, and fragmentation due to infrastructure and new roads, and fires assumed to be caused by humans.</p> 
  -
  -<p>This data can be used to assess forest intactness, alteration, and degradation at global and regional scales. More information about the data set and methodology is available on <a href="www.intactforests.org">www.intactforests.org</a></p>
  +          <p>The Intact Forest Landscapes (IFL) data set identifies unbroken expanses of natural ecosystems within the zone of forest extent that show no signs of significant human activity and are large enough that all native biodiversity, including viable populations of wide-ranging species, could be maintained. To map IFL areas, a set of criteria was developed and designed to be globally applicable and easily replicable, the latter to allow for repeated assessments over time as well for verification. IFL areas were defined as unfragmented landscapes, at least 50,000 hectares in size, and with a minimum width of 10 kilometers. These were then mapped and identified from Landsat satellite imagery for the year 2013.</p>
  +
  +          <p>Changes in the extent of IFLs were identified by contrasting the map for 2013 with the analogous map for 2000, adjusted for consistency. Areas identified as “reduction in extent” met the IFL criteria in 2000, but no longer met the criteria in 2013. The main causes of change were industrial activity such as logging and mining, and fragmentation due to infrastructure and new roads, and fires assumed to be caused by humans.</p>
  +
  +          <p>This data can be used to assess forest intactness, alteration, and degradation at global and regional scales. More information about the data set and methodology is available on <a href="www.intactforests.org">www.intactforests.org</a></p>
             <p class='credits'><strong>Citation:</strong> Potapov P., Yaroshenko A., Turubanova S., Dubinin M., Laestadius L., Thies C., Aksenov D., Egorov A., Yesipova Y., Glushkov I., Karpachevskiy M., Kostikova A., Manisha A., Tsybikova E., Zhuravleva I. 2008. Mapping the World's Intact Forest Landscapes by Remote Sensing. Ecology and Society, 13 (2) http://www.ecologyandsociety.org/vol13/iss2/art51/ </p>
   
             <p class='credits'><strong>Suggested citations for data as displayed on GFW:</strong> Greenpeace, University of Maryland, World Resources Institute and Transparent World. 2014. Intact Forest Landscapes: update and reduction in extent from 2000-2013. Accessed through Global Forest Watch on [date]. www.globalforestwatch.org</p>
  
positive.code: 
            <p class='credits'><strong>Suggested citation for data as displayed on GFW:</strong> Reymondin, Louis, Andrew Jarvis, Andres Perez-Uribe, Jerry Touval, Karolina Argote, Julien Rebetez, Edward Guevara, and Mark Mulligan. 2012. “Terra-i alerts." CIAT-Terra-i. 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}/forest_change?t=terrailoss" %></em></p>
            
          </div>
        </div>
      </li>
  
negative.code: 
          <div class='source_summary'>
            <h3 class='overview_title'>Overview</h3>
            <p>The Intact Forest Landscapes (IFL) data set identifies unbroken expanses of natural ecosystems within the zone of forest extent that show no signs of significant human activity and are large enough that all native biodiversity, including viable populations of wide-ranging species, could be maintained. To map IFL areas, a set of criteria was developed and designed to be globally applicable and easily replicable, the latter to allow for repeated assessments over time as well for verification. IFL areas were defined as unfragmented landscapes, at least 50,000 hectares in size, and with a minimum width of 10 kilometers. These were then mapped and identified from Landsat satellite imagery for the year 2013.</p>
  
  <p>Changes in the extent of IFLs were identified by contrasting the map for 2013 with the analogous map for 2000, adjusted for consistency. Areas identified as “reduction in extent” met the IFL criteria in 2000, but no longer met the criteria in 2013. The main causes of change were industrial activity such as logging and mining, and fragmentation due to infrastructure and new roads, and fires assumed to be caused by humans.</p>
  
  <p>This data can be used to assess forest intactness, alteration, and degradation at global and regional scales. More information about the dataset and methodology is available on <a href="www.intactforests.org">www.intactforests.org</a></p>
            <p class='credits'><strong>Citation:</strong> Potapov P., Yaroshenko A., Turubanova S., Dubinin M., Laestadius L., Thies C., Aksenov D., Egorov A., Yesipova Y., Glushkov I., Karpachevskiy M., Kostikova A., Manisha A., Tsybikova E., Zhuravleva I. 2008. Mapping the World's Intact Forest Landscapes by Remote Sensing. Ecology and Society, 13 (2) http://www.ecologyandsociety.org/vol13/iss2/art51/ </p>
  