Bolting cooling facilities onto an OTEC generator, and also using some of the resulting power for desalination on islands like the Bahamas that are short of fresh water, helps tip the economic balance in favour of OTEC.

ECONOMIST: Ocean heat may be used to generate electricity

Other entries included team Eco's Climate Sim, which sees the player taking control of a farmer who has to balance his day-to-day energy and water needs with the growth of his crops and the environmental impact of his actions.

BBC: NEWS | UK | England | Cornwall | Students designing Eden web games

Even that would involve filling the hull up to the lower deck with electrolyte and, to balance the pressure, probably flooding the bottom part of the dry dock with Thames water.

BBC: NEWS | Science/Nature | Landmark ship 'faces collapse'

We have the perfect balance of gases, gravity, solar radiation, water and nutrients to sustain life.

FORBES: Wealth and Fitness Secret - Ratios

Within the 24-year period, 67% of the years show negative net annual specific balances, with a cumulative mass balance loss of - 10.50 m water equivalent (w.e.).

UNESCO: Dublin Core