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            "id": 2912,
            "url": "http://svs.gsfc.nasa.gov/2912/",
            "result_type": "Visualization",
            "release_date": "2005-05-16T12:00:00-04:00",
            "title": "Population Density of the World, 1990-2015 (WMS)",
            "description": "This animation shows the population density of the world in the years 1990, 1995, 2000, as well as a population density estimated for the year 2015.  These figures have been adjusted to match United Nations totals.  The most dramatic differences in population are not readily visible in this animation because they are located in cities.  The maximum population density in 1990 was about 79,000 people per square kilometer, while the estimated maximum population density in 2015 will be about 236,000 people per square kilometer.  Developing areas in Africa, Latin America, and Asia change the most visibly. || ",
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            "url": "http://svs.gsfc.nasa.gov/2564/",
            "result_type": "Visualization",
            "release_date": "2002-10-09T12:00:00-04:00",
            "title": "Progression of the West Nile Virus Through the Continental United States",
            "description": "This visualization shows the east to west spread of West Nile Virus across the continental United States from 1999 through 2002.  The years are represented by different colors.  This visualization was created in support of a story describing how NASA is assisting the CDC and EPA in tracking the spread of West Nile Virus. || ",
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        {
            "id": 2565,
            "url": "http://svs.gsfc.nasa.gov/2565/",
            "result_type": "Visualization",
            "release_date": "2002-10-09T12:00:00-04:00",
            "title": "Mosquito Distribution Maps",
            "description": "These maps show mosquito habitat distribution for four mosquito species.  The red/black areas are results of satellite data analysis showing where particular species of mosquitos can be found.  The yellow lines are the 'published' boundaries for where these species can be found.  There is a strong correlation between the two.  These images were created in support of a story describing how NASA is assisting the CDC and EPA in tracking the spread of West Nile Virus. || ",
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            "id": 2566,
            "url": "http://svs.gsfc.nasa.gov/2566/",
            "result_type": "Visualization",
            "release_date": "2002-10-09T12:00:00-04:00",
            "title": "Continental United States Population Map",
            "description": "This image shows the 2001 population distribution estimate made by the US Census.  This visualization was created in support of a story describing how NASA is assisting the CDC and EPA in tracking the spread of West Nile Virus. || 2001 US Census Population Estimates with no background. || a002566_pop_wo_bg.jpg (720x528) [78.3 KB] || a002566_pop_wo_bg_web.png (320x234) [79.4 KB] || ",
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