You could think of it as your last chance to reduce your carbon footprint -- an eco-friendly funeral. Each cremation produces around 150 kilogrammes of CO2. Cremations also produce toxic chemicals -- a cubic metre of the exhaust gase can contain as much as 200 micrograms of mercury, largely from dental fillings.
A gas-fired steam boiler generates the heat required, and the procedure produces 66 kilograms of CO2 per body, said Sandy Sullivan, the company's founder. The process has been approved for use in five US states, but not yet in the UK.
Freeze-drying bodies could reduce emissions even further, according to another company, Cryomation, based in Woodbridge, UK. Its technique freezes a body to -195C using liquid nitrogen. Once brittle, the frozen body is turned into a powder and any metal removed.
The remains are then dried in a vacuum and sterilised, said Richard Maclean of Cryomation. The powder can be buried in a biodegradable box or scattered as fertiliser. The process produces 50 kilogrammes of CO2 per body.
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