[DoodleBob]

With aquamation, or “alkaline hydrolysis”, the body of the deceased is immersed for three to four hours in a mixture of water and a strong alkali, such as potassium hydroxide, in a pressurised metal cylinder and heated to around 150C. The process liquifies everything except for the bones, which are then dried in an oven and reduced to white dust, placed in an urn and handed to relatives.

There is NO WAY this is more "environmentally friendly" than a traditional burial. Where do they think those used chemicals go? Oh, that's right...down the drain...

[SauronOfMordor]

Potassium hydroxide, also known as caustic potash, is a fertilizer.

Dilute the result in water and spray on fields.