Cows, Pigs, Chickens Dominate Planet ~ Earth’s Creatures Decimated By Humans

Cows, Pigs, and Chickens Dominate Our Planet // Published on Jun 6, 2018

New jaw-dropping peer-reviewed science paper: farmed poultry makes up 70% of all birds on Earth, with just 30% being wild. Even worse: 60% of all mammals are livestock, like cattle and pigs, 36% are human and just 4% are wild animals.

Humans have decimated life everywhere on Earth, including remote regions like the poles and deep oceans.  Lots of the extra carbon in the atmosphere/oceans used to be safely stored in plants/animals.  Restoring a healthy biosphere would do wonders for restoring a healthy climate.
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Human Decimation of Earth’s Creatures // Published on May 29, 2018

Earth’s 7.6 billion people represent an eeny-weeny-itsy-bitsy proportion of all living things; in fact only 0.01% or 100 ppm of total biomass. Yet, since the dawn of civilization, humanity has reduced global biomass (weight of all life) by half, and have destroyed a stunning, pants dropping 83% of all wild mammals [1].

And we are just warming up (pun intended). I discuss findings from a new peer-reviewed study on the biomass distribution on Earth [dk, see link below], and how we have changed it over time. Not good.

Humans Just 0.01% of All Life but have Destroyed 83% of Wild Mammals –Study.  Damian Carrington, Guardian Environment editor, Mon 21 May 2018 15.00 EDT.

Groundbreaking assessment of all life on Earth reveals humanity’s surprisingly tiny part in it as well as our disproportionate impact.

‘Humankind is revealed as simultaneously insignificant and utterly dominant in the grand scheme of life on Earth by a groundbreaking new assessment of all life on the planet.


The world’s 7.6 billion people represent just 0.01% of all living things, according to the study. Yet since the dawn of civilisation, humanity has caused the loss of 83% of all wild mammals and half of plants, while livestock kept by humans abounds.’

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[1] ‘The biomass distribution on EarthYinon M. Bar-On, Rob Phillips, and Ron Milo
PNAS May 21, 2018. 201711842; published ahead of print May 21, 2018, Edited by Paul G. Falkowski, Rutgers, The State University of New Jersey, New Brunswick, NJ, and approved April 13, 2018 (received for review July 3, 2017).

‘The composition of the biosphere is a fundamental question in biology, yet a global quantitative account of the biomass of each taxon is still lacking. We assemble a census of the biomass of all kingdoms of life. This analysis provides a holistic view of the composition of the biosphere and allows us to observe broad patterns over taxonomic categories, geographic locations, and trophic modes.

‘A census of the biomass on Earth is key for understanding the structure and dynamics of the biosphere. However, a global, quantitative view of how the biomass of different taxa compare with one another is still lacking. Here, we assemble the overall biomass composition of the biosphere, establishing a census of the ≈550 gigatons of carbon (Gt C) of biomass distributed among all of the kingdoms of life. We find that the kingdoms of life concentrate at different locations on the planet; plants (≈450 Gt C, the dominant kingdom) are primarily terrestrial, whereas animals (≈2 Gt C) are mainly marine, and bacteria (≈70 Gt C) and archaea (≈7 Gt C) are predominantly located in deep subsurface environments’.   Continues at link.
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About paulbeckwith

Well known climate science educator; Part-time Geography professor (climatology, oceanography, environmental issues), University of Ottawa. Physicist. Engineer. Master's Degree in Science in Laser Optics, Bachelors of Engineering, in Engineering Physics. Won Association of Professional Engineers of Ontario gold medal. Also interested in investment and start-ups in climate solutions, renewable energy and energy efficiency. Avid chess player, and likes restoring old homes. Married with children.
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2 Responses to Cows, Pigs, Chickens Dominate Planet ~ Earth’s Creatures Decimated By Humans

  1. Dale Lanan says:

    Probability and Laws of heat transfer indicate mankind triggered irreversible harm to Earth home.
    The acceleration of type M planet Earth into hot house condition is underway as RU@USA mobs attempt to trash science and technology for pecuniary not linked to the value of Earth biosphere.
    The absolute nature of what happens with Entropy when 2nd Law of Thermodynamics is Closed System designed for extraction of profit without consequence hits wall of Fermi’s Paradox – here as is likely the case near all instanced in a universe thinking kindness flows from hot to cold like heat would in time forward; so wouldn’t it be better to try again and give standing to others’ work before in respect for all the work of all the creatures and chance Act of God Writ Test of Theory 2C Danger unacceptable and to give Echo to Poetry and song of the Sparrow `throat at dawn…
    ~To give children bearing of direction for work in their lives to confront the System Isolate Corp…
    And for Earth to Jump the Shark of Intelligence Extinction and to keep Oxygen 2 Atmosphere OK


  2. Mats Lundälv says:

    Hi Paul,
    The important presentation of this report and its figures raises some questions in relation to your previous presentation about iron fertilization of the deep oceans in order to stimulate phytoplankton growth to bind CO2 and stimulate sea life in general. The figures here claim that 82% of biomass on earth consists of plants, and that only 1% of the total biomass is to be found in the oceans. But how does this match the claims reported in your previous presentation that fertilization of the deep oceans could rather quickly restore like 15 (?) Amazons worth of biomass, and that what happens in the oceans is far more important and influential than what happens on land? Both ends don’t meet in my mind 😉
    What are your thoughts about this?


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