Introduction Soils are important for human health in a number of ways. Approximately 78% of the average per capita calorie consumption worldwide comes from crops grown directly in soil, and another nearly 20% comes from terrestrial food sources that rely indirectly on soil (Brevik 2013a). Soils are also a major source of nutrients, and they act as natural filters to remove contaminants from water. However, soils may contain heavy metals, chemicals, or pathogens that have the potential to negatively impact human health. This article will summarize some of the more important and direct relationships between soils and human health.
Throughout human history, our relationship with the soil has affected our ability to cultivate crops and influenced the success of civilizations. This relationship between humans, the earth, and food sources affirms soil as the foundation of agriculture.
Snapshot Come with David Murphy while he takes you through the influence worms had on human migration in times long past, how worms can make or break civilizations, how smart farmers like David Davidson who uses worms to double the carrying capacity of his land, or Bert Farquahar who could write out a cheque for $10,000,000 to buy another farm because of the canny way he used worms. See how David Murphy is able to take what the worms produce – on its own, a super plant booster – and quadruple its plant growth value by very simple means and how to blend it with rock dust to make the complete low impact but effective biological fertiliser for a few dollars only per tonne. Find out why worms ain’t worms, but then add David Murphy’s extraordinary knowledge and you have the key to super prosperity by a sustainable means.
By Brad Plumer, Javier Zarracina, Eliza Barclay, and 2 others on The scissors are, of course, metaphorical. Javier Zarracina One of the biggest and most important science stories of the last few years will probably also be one of the biggest science stories of the next few years. So this is as good a time … Continue reading A simple guide to CRISPR, one of the biggest science stories of the decade – Vox
A large sleigh, which was attempting to smuggle thousands of presents into Australia, has been turned around and towed back to the North Pole, Immigration Minister Peter Dutton has confirmed. “While I obviously can’t comment on the specifics, what I will say is that this is proof once again that our strengthened border security measures … Continue reading Irregular Sleigh Vehicle Towed Back To North Pole – The Shovel
By David Sloan Wilson I recently took part in a workshop titled “Tensions in the Political Economy Project of F.A. Hayek”. The Austrian economist Friedrich Hayek (1899-1992) is a libertarian God and the workshop was organized by George Mason University’s Mercatus Center, a Mecca for modern libertarian thought. Nevertheless, I knew coming into the workshop … Continue reading The Invisible Hook: How Pirate Society Proves Economic Self-Interest Wrong – Evonomics
As is the case with other personality disorders, narcissism exists on a spectrum. “At one end of this ‘self-loving’ spectrum is the charismatic leader, who is capable, has friends and family, but whose main vice is his or her inflated sense of self,” says psychologist and certified family law specialist David Glass, CFLS, PhD. “At … Continue reading 6 Tactics Narcissists Will Use To Silence You
In this third instalment, we will focus upon the multiple reasons why organic matter really matters. We will explore exciting new composting options and we will consider the productive use of humic acid in your garden. Source: Ten Tips for a Problem-Free, Super Productive Home Garden (Part 3)
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Marcus Aurelius on How to Motivate Yourself to Get Out of Bed in the Morning and Go to Work “You don’t love yourself enough. Or you’d love your nature too, and what it demands of you.” BY MARIA POPOVA “If we design workplaces that permit people to find meaning in their work, we will be … Continue reading Marcus Aurelius on How to Motivate Yourself to Get Out of Bed in the Morning and Go to Work – Brain Pickings
Thank you Michael Butler for sharing this: It is not explaining the meaning of life but it sure helps. Well worth scrolling through if you haven't already. http://theoatmeal.com/comics/believe
Don’t you hate the expression, “At the end of the day”? It should only refer to that agreeable time when the daylight hours are winding down; the sun is setting, a drink would go down pretty well, it’s time for dinner soon, wonder what’s on the telly, etc.