Earth’s vast deposits of natural gas hydrates hold the promise of meeting the world’s natural gas needs far into
the 21st century—if they can be tapped. Presently they are at best a sub-economic resource, but realization of
even a small part of their potential would provide a very significant new source of natural gas to meet future energy
and environmental requirements. Detailed knowledge of natural gas hydrate deposits is scant, and how they might
be produced economically and safely has barely been considered.