Geothermal research drilling ongoing in Frankfurt, Germany
Skyline of Frankfurt/ Germany (source: flickr/ /xingxiyang, creative commons) A medium-depth research borehole is being drilled at the Rebstock site
Read moreSkyline of Frankfurt/ Germany (source: flickr/ /xingxiyang, creative commons) A medium-depth research borehole is being drilled at the Rebstock site
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