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Nuclear firefighters: Workers in protective clothing tackle the blaze at Windscale (later known as Sellafield) in Cumbria in 1957.As frantic attempts are under way to make safe the nuclear power station hit by the tsunami in Japan, it is not surprising that questions are being asked about the safety of Britain's 19 nuclear reactors ‘There are no warning signs anywhere along the coast.

The water laps near a weathered wooden signpost pointing out the pleasant walk to the Roman port of Ravensglass.The edge of the estuary is an expanse of sticky mud covered with greenish moss and rotting seaweed.Since the mid-20th century, plutonium in the environment has been primarily produced by human activity.The first plants to produce plutonium for use in cold war atomic bombs were at the Hanford nuclear site, in Washington, and Mayak nuclear plant, in Russia.Radiometric dating--the process of determining the age of rocks from the decay of their radioactive elements--has been in widespread use for over half a century.

There are over forty such techniques, each using a different radioactive element or a different way of measuring them.In 1956 Calder Hall nuclear power station was opened alongside it to produce low-cost electricity for millions of homes.Back then, the long, sandy beach at the nearest town of Seascale was popular with swimmers.In reality, the Bible makes no claim as to the age of the earth, although it does establish a minimum age.This page examines some of the history of the controversy—what the Bible actually says and does not say—and the scientific evidence surrounding the age of the earth.These were the first two cities in the world to produce plutonium for use in cold war atomic bombs.