Humans have beenburying their deadfor millennia , but it ’s not the only way we ’ve use nature to help us transform corpses . In Tibet , birds of quarry play a polar role inSky Burials , and elsewhere , Zoroastrian tradition saw the erection of Towers Of Silence , a place where corpse are arranged so that carnivorous snort can feast on them .

The funerary practice session is seen as a way of purifying the body , as without it , a corpse is vulnerable to contamination bydemonsor evil spirits . To stop that from happen , the deadened were taken to towers known as dakhmas so that they could be exposed to the element and fly pack rat .

You might suppose it to be a messy , lengthy process , but astudyusing donate human remains at the Forensic Anthropology Research Facility in Texas has show up how vultures can largely skeletonize a corpse in just five hours . Five ! In a coffin , you ’re looking at closer tofiveyearsfor the same consequence , so those bird really know what they ’re doing .

Like Sky Burials , Towers Of Silence debar the negative consequences of forward-looking day burial that have take up around1 million acres(404,685 hectares ) of land in America , with the product of caskets destroying roughly 4 million land ( 1.6 million hectares ) of wood annually . Many of those bodies go down having beenembalmed , commit around 800,000 congius of embalming fluid to the priming coat , which can strip into the soil as a contaminant .

There was a metre you could find alive column Of Silence in several places across the globe , with The Guardian reporting that the practice see back at least3,000 years . For orthodox Zoroastrians , the musical theme of burial is so repulsive that it was reportedly considered a bod of penalty for the severe . This is because it created an obstruction that keep the soul from ascend to heaven , leaving it sentence to spend eternity in the underworld .

Zoroastrian community ( whose members are know as Parsis ) still exist today but the number of dakhmas has shed importantly as the drill has been outlawed in parts of the world . Even in places where they are still effectual , the Towers Of Silence are scramble due to a declivity in the number of predator .

“ Because of the rapid growth of metropolitan Karachi , thedaḵma , once on the boundary of town , is surrounded by densely populated neighborhood , and there have been no vulture for 25 years , " explainsEncylopaedia Iranica . " The torso dry out quickly in the spicy sun of Sindh but are not strip of their peel and have push thedaḵma , whose fossa can not do by their bodies . ”

The practice session might seem shocking to Westerners whereburialhas always been the average , but it could be argued that dakhmas are better for the planet , and convey a satisfying last act of charity as the flesh feed the vulture that assist the psyche ’s conversion to heaven . On a satellite where the universe has tipped8 billion , perhaps it ’s time to pop taking ecologically sound funerary recitation more earnestly , and on that note , have you heard abouthuman compost ?