Hydro, Hydropower or Hydroelectric Power (HEP)

by | Jul 31, 2000 | Green Terms "H"

(HEP) Hydro, Hydropower or Hydroelectric Power Energy in moving water can be harnessed and used to generate electricity. Since water is about a thousand times denser than air, even a slow flowing stream of water, or moderate sea swell, can yield considerable amounts...

HVAC (Central Air Conditioning)

by | Jul 30, 2000 | Green Terms "H"

HVAC stands for heating, ventilation, and air conditioning. Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers (i.e., openings in the walls, floors, or ceilings covered by grills) carry cooled air from...

Hubbert’s Curve

by | Jul 30, 2000 | Green Terms "H"

Hubbert’s Curve A prediction, made by a geologist in the late 1950s, that classified fossil fuels as finite and said that after a peak time access to these resources would rapidly decline, eventually diminishing entirely.