Heating/cooling buildings by exchange w/shallow groundwater systems is a form of SOLAR or GEOTHERMAL energy?

Answer 1

That would be geothermal...hence the meaning of the word GEO-the earth, THERMAL-temperature. If the sunlight was in direct contact with the exchange unit it would be solar energy, but it relies on the earth's warming and cooling features.

Hope that does it for you.

Answer 2

global water management is the best way to developp the solar and geothermal energy

http://video.google.fr/videoplay?docid=-4710874956972073212&hl=fr

Put water in the ground untill the magma push it back in your garden...