from the world's big
What Makes the Earth Rare
What is it about the Earth that has allowed life to continue for such long periods of time? The most important factor is plate tectonics.
When we thought up the Rare Earth Hypothesis, it was simply taking a look at what happened on this planet that allowed us to have multi-cellularity. Part of it was that we had conditions allowing habitability for billions of years. It took a long time to get to something as simple as a two-celled creature. A long time.
How do you get a long time? You do it because systems of temperature, systems of oxygen, systems of all the gasses and the carbon movement remains stable. If you get too hot, too cold and only a little bit too hot and a little bit too cold in a planetary sense, you can kiss it all good-bye.
So, what is it about the Earth that allowed things to continue for such long periods of time? The most important factor is plate tectonics. This is the movement of the surface of the Earth over the top of a mobile, softer rock substrate beneath it. So, the continents skate around like bumper cars. Part of that process is a continental and ocean recycling. And that recycling system is an absolutely necessity to keep a long term temperature constancy. We have this feedback system, a thermostat system. What makes the earth warmer is carbon dioxide, what makes the earth cooler, interestingly enough, is the removal of that carbon dioxide. Volcanoes put it in the air, but weathering removes it. If you take a granite, or any rock that had a volcanic material in it and let it chemically weather, one of the byproducts takes Co2 out of the atmosphere. The warmer it gets, the faster that process works.
So, the warmer it gets the faster the breakdown removes Co2. If you get down to an area, or a level at which you can no longer chemically weather, the volcanoes refill you up. Now that bang-bang feedback system has been in service for over 3 ½ billion years or more. That has kept us at a stable temperature. How often does a planet have plate tectonics? By looking at the nature of the rock, we barely have it. If you want to think about the end of the world, the end of the world is going to happen when the friction co-efficiency over-exceeds the type of rock we have, and we no longer have these subduction zones.
The end of the world is also going to be when our core - we have this liquid molten core - it’s going to freeze because the Earth is slowly dying and cooling. When that freezes, we lose our magnetic field. So we also have consequences for plate tectonics. So, those two things are geologically produced. How often do you find both of them on the same planet? Theoretical studies say, not very often.
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Construction of the $500 billion dollar tech city-state of the future is moving ahead.
- The futuristic megacity Neom is being built in Saudi Arabia.
- The city will be fully automated, leading in health, education and quality of life.
- It will feature an artificial moon, cloud seeding, robotic gladiators and flying taxis.
The Red Sea area where Neom will be built:
Saudi Arabia Plans Futuristic City, "Neom" (Full Promotional Video)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="c646d528d230c1bf66c75422bc4ccf6f"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/N53DzL3_BHA?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
Frequent shopping for single items adds to our carbon footprint.
- A new study shows e-commerce sites like Amazon leave larger greenhouse gas footprints than retail stores.
- Ordering online from retail stores has an even smaller footprint than going to the store yourself.
- Greening efforts by major e-commerce sites won't curb wasteful consumer habits. Consolidating online orders can make a difference.
A pile of recycled cardboard sits on the ground at Recology's Recycle Central on January 4, 2018 in San Francisco, California.
Photo by Justin Sullivan/Getty Images<p>A large part of the reason is speed. In a competitive market, pure players use the equation, <em>speed + convenience</em>, to drive adoption. This is especially relevant to the "last mile" GHG footprint: the distance between the distribution center and the consumer.</p><p>Interestingly, the smallest GHG footprint occurs when you order directly from a physical store—even smaller than going there yourself. Pure players, such as Amazon, are the greatest offenders. Variables like geographic location matter; the team looked at shopping in the UK, the US, China, and the Netherlands. </p><p>Sadegh Shahmohammadi, a PhD student at the Netherlands' Radboud University and corresponding author of the paper, <a href="https://www.cnn.com/2020/02/26/tech/greenhouse-gas-emissions-retail/index.html" target="_blank">says</a> the above "pattern holds true in countries where people mostly drive. It really depends on the country and consumer behavior there."</p><p>The researchers write that this year-and-a-half long study pushes back on previous research that claims online shopping to be better in terms of GHG footprints.</p><p style="margin-left: 20px;">"They have, however, compared the GHG emissions per shopping event and did not consider the link between the retail channels and the basket size, which leads to a different conclusion than that of the current study."</p><p>Online retail is where convenience trumps environment: people tend to order one item at a time when shopping on pure player sites, whereas they stock up on multiple items when visiting a store. Consumers will sometimes order a number of separate items over the course of a week rather than making one trip to purchase everything they need. </p><p>While greening efforts by online retailers are important, until a shift in consumer attitude changes, the current carbon footprint will be a hard obstacle to overcome. Amazon is trying to have it both ways—carbon-free and convenience addicted—and the math isn't adding up. If you need to order things, do it online, but try to consolidate your purchases as much as possible.</p><p>--</p><p><em>Stay in touch with Derek on <a href="http://www.twitter.com/derekberes" target="_blank">Twitter</a>, <a href="https://www.facebook.com/DerekBeresdotcom" target="_blank">Facebook</a> and <a href="https://derekberes.substack.com/" target="_blank">Substack</a>. His next book is</em> "<em>Hero's Dose: The Case For Psychedelics in Ritual and Therapy."</em></p>
Chronic irregular sleep in children was associated with psychotic experiences in adolescence, according to a recent study out of the University of Birmingham's School of Psychology.