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Do we Still have a Chance? The Challenge of Emergency Measures for the Survival of Humankind

Do we Still have a Chance? The Challenge of Emergency Measures for the Survival of Humankind

 

The epidemic of COVID-19 seems to have snuffed out all other subjects of debate. But there remain problems that we could define as a little more worrisome than the COVID pandemic, for instance, the possibility of the extinction of humankind and, perhaps, of the Earth’s biosphere. Here Dr. Ye Tao is giving an effective presentation that highlights that we are in a dire emergency. Perhaps, the pandemic can at least teach us what NOT to do in an emergency.

 Caution: highly catastrophistic post!

The Problem

The clip above shows a recent talk by Dr. Ye Tao, interesting for several reasons. One is how it goes to the core of the climate story with the typical approach of the physicists: based on data and on the laws of physics. This approach bypasses much of the ongoing debate, in large part hijacked by modelers and their opponents.

Unfortunately, the emphasis on models has generated the diffuse misunderstanding that climate change is mainly a question of models and that the future climate can be predicted by models. That resulted in an attempt by skeptics to show that models generated poor predictions in the past. From that, they maintain that if models can’t predict things right, then climate change doesn’t exist or is not a problem. One reason, although not the only one, why the debate remains stuck and leads to no decisions.

Instead, if you go to the basic physics of the issue, you’ll discover that models are certainly wrong as predictive tools simply because they can’t include the non-linear forces that push the system to change its state. But physics tells you that the problem is way worse than models can calculate. That’s what Dr. Tao does.

…click on the above link to read the rest of the article…

Renewables Are Dead

Renewables Are Dead

Gustave Courbet The man made mad by fear 1844

If I’ve said once that those among us who tout renewable energy should pay more attention to the 2nd law of Thermodynamics, I must have said it a hundred times. But I hardly ever get the impression that people understand why. And it seems so obvious. A quote I often use from Herman Daly and Ken Townsend, when I talk about energy, really says it all:

“Erwin Schrodinger (1945) has described life as a system in steady-state thermodynamic disequilibrium that maintains its constant distance from equilibrium (death) by feeding on low entropy from its environment – that is, by exchanging high-entropy outputs for low-entropy inputs. The same statement would hold verbatium as a physical description of our economic process. A corollary of this statement is that an organism cannot live in a medium of its own waste products.”

Using energy produces waste. Using more energy produces more waste. It doesn’t matter -much- what kind of energy is used, or what kind of waste is produced. The energy WE use produces waste, in a medium of which WE cannot survive. The only way to escape this is to use less energy. And because we have used such an enormous amount of energy the past 100 years, we must use a whole lot less in the next 100.

We use about 100 times more energy per person, and a whole lot more in the west, than our own labor can produce. We use the equivalent of what 500 billion people can produce without the aid of fossil fuel-powered machines. We won’t solve this problem with wind turbines or solar panels. There really is one way only: cut down on energy use.

 …click on the above link to read the rest of the article…

Green New Physics

Green New Physics

Johannes Vermeer The lacemaker 1669-71

You could probably say I’m sympathetic to the schoolchildren protesting against climate change, and I’m sympathetic to Alexandria Ocasio-Cortez and her call for a Green New Deal. Young people are the future, and they deserve a voice about that future. At the same time, I’m also deeply skeptical about their understanding of the issues they talk about. 

In fact, I don’t see much understanding at all. I think that’s because they base their comprehension of the world they’ve been born into on information provided by the very people they’re now protesting against. Look kids, your education system sucks, it was designed by those destroying your planet, you need to shake it off and get something better.

But I know what you will do instead: you’re going to get the ‘proper’ education to get a nice-paying job, with a nice car (green, of course) and a nice house etc etc. In other words, you will, at least most of you, be the problem, not solve it. And no shift towards wind or solar will make one iota of difference in that. Want to improve the world? Improve the education system first.

Climate change is just one of an entire array of problems the world faces, and in the same way the use of fossil fuels is just one of many causes of these problems. And focusing on only one aspect of a much broader challenge simply doesn’t appear to be a wise approach, if only because you risk exacerbating some problems while trying to fix others. 

 …click on the above link to read the rest of the article…

There Is Just One Thing Preventing Elon Musk’s Vision From Coming True: The Laws Of Physics

There Is Just One Thing Preventing Elon Musk’s Vision From Coming True: The Laws Of Physics

When Elon Musk stepped on stage at Tesla’s product-launch event earlier this month, he knew the market’s confidence in Tesla’s brand had sunk to an all-time low since he took over the company a decade ago. So, he resorted to a tactic that should be familiar to anybody who has been following the company: Shock and awe.

While the event was ostensibly scheduled to introduce Tesla’s new semi-truck – a model that won’t make it’s market debut for another two years, assuming Tesla sticks to its product-rollout deadline – Musk had a surprise in store: A new model of the Tesla Roadster that, he bragged, would be the fastest production car ever sold.

Musk made similarly lofty claims about the battery life and performance of both vehicles. The Tesla semi-trucks, he said, would be able to travel for 500 miles on a single charge. The roadster could clock a staggering 620 – more than double the closest challenger.

There was just one problem, as Tesla fans would later find out, courtesy of Bloomberg: None of it was true.

In fact, many of the promises defy the capabilities of modern battery technology.

Elon Musk knows how to make promises. Even by his own standards, the promises made last week while introducing two new Tesla vehicles—the heavy-duty Semi Truck and the speedy Roadster—are monuments of envelope pushing.

To deliver, according to close observers of battery technology, Tesla would have to far exceed what is currently thought possible.

Take the Tesla Semi: Musk vowed it would haul an unprecedented 80,000 pounds for 500 miles on a single charge, then recharge 400 miles of range in 30 minutes. That would require, based on Bloomberg estimates, a charging system that’s 10 times more powerful than one of the fastest battery-charging networks on the road today—Tesla’s own Superchargers.

…click on the above link to read the rest of the article…

Split personalities: We like some science, but not all of it

Split personalities: We like some science, but not all of it

We modern folk are in a bind. We embrace what the sciences and the technology that flows from them have to offer, but we refuse to believe that we live in the world described by those very sciences.

Here I’m not merely talking about climate change deniers who, of course, fit this description. They merrily dial number after number on their cellphones, but they do so without realizing that in their climate change denial they are rejecting the very same science that underpins the phone they are using: physics.

But so many others live in this dual world as well. We humans imagine ourselves set apart from the natural world. And yet, our very bodies are the subject of scientific investigations. So we turn to our minds which we imagine set us apart from the natural world. But what is the mind? Do we not place the mind in the body? Are its manifestations not speech, writing, music, dance, and graphic arts which require the body for their expression.

The science of physics tells us that we live in a thermodynamic system. The universe is a thermodynamic system and so by definition must our Earth be one. Thermodynamic systems produce entropy, lots of it. Some two-thirds of all the energy we use in the United States is wasted. That’s right, wasted. That entropy shows up as climate-changing carbon dioxide in the atmosphere which is also acidifying the oceans. It shows up as barren landscapes left behind by coal and other mining. It shows up as waste heat and waste products flowing from our factories, our homes and our vehicles.

…click on the above link to read the rest of the article…

The Physics of Energy and the Economy

The Physics of Energy and the Economy

The primary issue at hand is that, as a dissipative system, every economy has its own energy needs, just as every forest has its own energy needs (in terms of sunlight) and every plant and animal has its own energy needs, in one form or another. A hurricane is another dissipative system. It needs the energy it gets from warm ocean water. If it moves across land, it will soon weaken and die.

There is a fairly narrow range of acceptable energy levels–an animal without enough food weakens and is more likely to be eaten by a predator or to succumb to a disease. A plant without enough sunlight is likely to weaken and die.

In fact, the effects of not having enough energy flows may spread more widely than the individual plant or animal that weakens and dies. If the reason a plant dies is because the plant is part of a forest that over time has grown so dense that the plants in the understory cannot get enough light, then there may be a bigger problem. The dying plant material may accumulate to the point of encouraging forest fires. Such a forest fire may burn a fairly wide area of the forest. Thus, the indirect result may be to put to an end a portion of the forest ecosystem itself.

…click on the above link to read the rest of the article…

Olduvai IV: Courage
In progress...

Olduvai II: Exodus
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