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Technofossils: Unprecedented legacy left behind by humans

Date:
March 25, 2014
Source:
University of Leicester
Summary:
Scientists suggest that the fossil impact humans have made on the planet is vast and unprecedented in nature -- and that there's been nothing remotely like it since the Earth formed, over four and half billion years ago.The researchers argue that, like dinosaurs, who left their bones and footprints behind for future generations to discover, humans will also leave a footprint behind -- one made up of material goods unique to humankind that are so different from anything else produced by animals in the history of Earth that they deserve their own name: technofossils.

A new study by an international team of scientists, including Dr Jan Zalasiewicz and Professor Mark Williams of the University of Leicester's Department of Geology, suggests that the fossil impact humans have made on the planet is vast and unprecedented in nature -- and that there's been nothing remotely like it since Earth formed, over four and half billion years ago.

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The study, entitled 'The technofossil record of humans' and published by SAGE in The Anthropocene Review, argues that, like dinosaurs, who left their bones and footprints behind for future generations to discover, humans will also leave a footprint behind -- one made up of material goods unique to humankind that are so different from anything else produced by animals in the history of Earth that they deserve their own name: technofossils.

Dr Zalasiewicz said: "Palaeontologists call preserved animal-made structures trace fossils. Most animal species make only one -- or at most a very few -- different types of trace. For example, dinosaurs made footprints and worms leave burrows. Just one species, though, Homo sapiens, now manufactures literally millions of different types of traces that range from nano-scale to city-sized.

"Whereas trace fossils such as animal burrows changed their pattern with geological slowness, over millions of years, as the organisms that produced them evolved, the things that humans manufacture now evolve with lightning speed, as our factories bring new goods to the market each year -- and make old ones obsolete. Many of the cast-off objects that now litter the landscape will become buried in sediment -- and will be well on the way to becoming technofossils."

The study suggests that humanity's equivalent of the dinosaur's footprint will be in the form of a wide array of technofossils such as motorways, cities, airports, toothbrushes, ballpoint pens and mobile phones -- everything that we build or manufacture.

Professor Mark Williams added: "Millions of years from now, long after humans have gone, technofossils will be the defining imprint on the strata of the human epoch that people increasingly call the Anthropocene. If any palaeontologists were to appear on -- or visit -- Earth in the far geological future, they will think the technofossil layer more weird and wonderful, by far, than dinosaur bones. It's something to think about when you next park the wheelie bin at the end of the drive."

The Anthropocene Review is a trans-disciplinary journal issued three times per year, bringing together peer-reviewed articles on all aspects of research pertaining to the Anthropocene. Its overall aim is to communicate clearly and across a wide range of disciplines and interests, the causes, history, nature and implications of a world in which human activities are integral to the functioning of Earth System.

The study will appear in the April 2014 print issue of The Anthropocene Review.


Story Source:

The above story is based on materials provided by University of Leicester. Note: Materials may be edited for content and length.


Journal Reference:

  1. J. Zalasiewicz, M. Williams, C. N. Waters, A. D. Barnosky, P. Haff. The technofossil record of humans. The Anthropocene Review, 2014; 1 (1): 34 DOI: 10.1177/2053019613514953

Cite This Page:

University of Leicester. "Technofossils: Unprecedented legacy left behind by humans." ScienceDaily. ScienceDaily, 25 March 2014. <www.sciencedaily.com/releases/2014/03/140325094806.htm>.
University of Leicester. (2014, March 25). Technofossils: Unprecedented legacy left behind by humans. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2014/03/140325094806.htm
University of Leicester. "Technofossils: Unprecedented legacy left behind by humans." ScienceDaily. www.sciencedaily.com/releases/2014/03/140325094806.htm (accessed December 20, 2014).

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