How much carbon is left behind in human ashes after the body is cremated?

The amount of carbon left behind in human ashes after cremation depends on several factors, including the age, weight, and bone density of the person, as well as the temperature and duration of the cremation process.

On average, human ashes typically contain about 3% carbon by weight. However, this can vary widely, with some ashes containing as little as 1% carbon and others containing up to 6% carbon.

It's worth noting that the carbon in human ashes is primarily derived from the organic material in bone, such as collagen and other proteins. The high heat of the cremation process causes these materials to break down into their elemental components, including carbon, which remains in the ashes.

While the amount of carbon left behind in human ashes may seem small, it's still important to consider the environmental impact of cremation. Burning fossil fuels to generate the high temperatures needed for cremation releases carbon dioxide and other greenhouse gases into the atmosphere, contributing to climate change.

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