More year the place to build a burial is more less, this condition makes people in certain country think differently when he or she died. About 75% people in UK are cremated after they die, while in the US the figure has risen from 25% in the year 0f 2000 increase to 35% to day. Each cremation produce 150 kilograms of CO2, 50 kilograms come from the fuel and the rest are from burning the body and coffin.
Beside produce of waste gas, cremation also can produce toxic chemicals, a cubic meter of the exhaust gases can contain as much as 200 microgram of mercury, largely from dental fillings, the we know that mostly adult people have plugged their teeth with dental filling because of their teeth is not good anymore.
Those condition make some experimental people try to find new technology how to lessen of CO2 and eliminates of mercury emissions. To make less of emission then the body should be dissolved in sodium hydroxide at 180oC. A gas-fired steam boiler generates the heat required, and the procedure produce 66 kilograms of CO2, per body. While to reduce of emission the body should be dried mean that the liquid contain lessen by the first is freeze a body to -195oC using liquid nitrogen. Once brittle, the frozen body is turned into a powder and any metal removed. The remain then dried in vacuum condition and sterilized.
These process to cremation the body by using those step is named by Cryomation, which developed the technology with a team led by David Naseby at University of Hertfordshiere in Hatfield, UK.
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