Entries by David Manthos

Mapping Abandoned Coal Mines

Did you know there are 48,529 abandoned coal mines in the United States which are known to pose a threat to the public and/or the environment? This number comes from the most comprehensive federal database that we know of – the enhanced Abandoned Mine Lands Inventory System (eAMLIS) maintained by the Office of Surface Mining (OSM).  Of […]

Map of Active Wellpads in Pennsylvania: 2005-2013

Citizen-scientist analysis of aerial survey imagery from 2013, validated by SkyTruth, found 1,615 new wellpads in Pennsylvania’s Marcellus Shale (and related Devonian shales). This latest result of our ongoing FrackFinder projects brings the total to 2,724 active industrial operations that we have identified spread across the fields and forests of Pennsylvania. These numbers are not to […]

Mapping Inactive Metal Mines Across the US

On August 5, more than 3,000,000 gallons of acidic, heavy-metal-laden mine waste from the Gold King Mine polluted the Animas River in southwestern Colorado. Ironically, the accident occurred while contractors for the U.S. Environmental Protection Agency (EPA) were trying to plug a smaller leak from the inactive mine that was already polluting the river.  This was […]

SkyTruth Data Analysis Aids Fishing Slavery Investigation

“They got it!!” Late in the afternoon on July 14, an investigative journalist from the Associated Press (AP) informed SkyTruth that over three months of research, behavioral analysis, and satellite vessel tracking had culminated in photographic evidence of a refrigerated cargo ship receiving transshipments at sea from fishing vessels believed to be crewed by slave labor.  [UPDATE: On August 12, the Silver […]