Food and water for energy

Ulsted Solar Energy System, Denmark

Ulsted Solar Energy System, Denmark (Photo credit: Wikipedia)

Water is essential to the world’s ability to grow food and produce energy. However, current policies and practices are based on a plentiful supply of this precious resource, a mindset that must change if the world is to meet the demands of its future population.

Nearly half of all water withdrawals in the US are used for cooling at thermoelectric power plants, a figure that illustrates the true inter connectivity between energy and water. As Professor Kevin Noone of the Stockholm Resilience Centre says in the audio clip above, it takes a significant amount of water to create energy. For example, hydroelectricity consumes vast amounts of water to cool the plant. This water then needs to be pumped and stored, processes that both use energy to complete.

Source: guardian.co.uk

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