Sunday, August 27, 2023
Taking a short break - no post this week
Sunday, August 20, 2023
'White' hydrogen: The hydrogen economy zombie rises again
Just when you thought the hydrogen economy zombie was dead and gone, it rises again, this time in color.
Yes, hydrogen comes in many colors these days: green, blue, gray and now white. No, these are not literal colors, but rather marketing tools designed to convince investors, policymakers (think: public subsidies), and the public (think: support of public subsidies) that the hydrogen economy is right around the corner and will be a key to addressing climate change. When burned, of course, hydrogen combines with oxygen to produce water. When manufactured, however, the process can produce a little or a lot of carbon dioxide depending how the manufacturing is done and whether fossil fuels are used as feedstocks.
Periodically, hydrogen advocates create a boomlet in media coverage to announce the coming of the hydrogen economy that never seems to arrive.
White hydrogen is the newest hydrogen media boomlet. It denotes hydrogen occurring naturally in reservoirs in the Earth's crust as a free gas not combined with other elements. Its presence has been known for a long time. But no one believed the reservoirs were numerous enough or large enough to bother extracting. That thinking has changed, and there are now companies actively prospecting for underground hydrogen reservoirs.
Sunday, August 13, 2023
Thinking about a world of scarcity
It has now become more fashionable to talk about shortages. Computer chips have been in shortage and then in glut in the last few years. Natural gas was acutely in shortage in Europe after the war in Ukraine and pipeline sabotage brought supplies from Russia down to a trickle. Then, heroic efforts at conservation and in obtaining liquefied natural gas (LNG) shipments to Europe led to a dramatic reduction in price. But last week just the potential for labor strikes among LNG workers in Australia, a major LNG exporter, sent the European price spiking again.
The world seemed so well supplied with everything in the previous decade that the shortages of this decade seem shocking to those with memories that do not extend further back than 2010.
But in what is actually recent memory, we have examples. It was the mid-2000s that brought us spiking food prices. Now they are rising again. It also brought us the highest price ever for a barrel of oil. Now oil prices are elevated again. Metals prices rose. Now they are again.
Sunday, August 06, 2023
Why I assume "fixes" meant to prevent collapse won't work
There are those who believe our current way of life is not facing any near term threat and will go on indefinitely. In this view, any existential problems—should they ever arise—will be dealt with by new technologies.
Others assume the threat of civilizational collapse is real and can be and even will be addressed. They may believe that the threats include climate change, the challenge of evolving microbes that are rendering antibiotics useless, and the increasing toxicity of the biosphere due to human releases of novel toxic chemicals. This group frantically offers solutions which are emitted on an almost daily schedule from the world's universities and industrial research laboratories.
The solutions that are offered usually address an isolated issue such as carbon-free energy. A recent proposal suggests burning iron powder. As one reads about this "solution," it seems more and more like a nonstarter. There's plenty of iron, of course. But we need to ramp up dramatically the manufacture of iron powder. This gets burned to make iron oxide. Then we can make iron "renewable" by using hydrogen to strip away the oxygen from the resulting iron oxide so we get iron again.
Sunday, July 30, 2023
Taking a short break - no post this week
Sunday, July 23, 2023
Interdependence and the fracturing world: China, Russia, Europe and the United States
The most salient fact about natural resources such as minerals and fertile soil is that they are unevenly distributed around the world. That means some countries have far more than they need and others are desperately dependent on imports.
Some writers think that trade between nations of resources and practically everything else leads to an interdependence that makes war much more costly and thus less likely. Others believe that the many causes of war—for example, a desire to dominate, fear of being attacked (leading to pre-emptive war), ethnic rivalries and grievances, and the desire for direct control of resources—often negate concerns that the cost of war will exceed its benefits.
After the relative quiet of the post-Cold War era during which the world's economies integrated into one global market, major powers and their leaders are again weighing the two arguments. Russia, of course, decided that its fear of being surrounded by NATO-allied countries outweighed the possible economic consequences of war (though it's not clear that the Russian government realized the far-reaching effects its war with Ukraine would have on its trade).
Earlier this year an American general predicted war with China by 2025. The U.S. Department of Defense (DOD) said that the general's views do not represent those of the DOD. Not surprisingly, the DOD stated that it prefers peace in Asia.
Sunday, July 16, 2023
Climate change and the uninsurable future
A person buying insurance does so because he or she is concerned about the future. A house fire could lead to a financial wipe-out. A car accident resulting in hospitalization could result in savings-depleting bills without insurance.
Insurance companies, however, concern themselves primarily with the past. They pay people called actuaries to create detailed models of risk using voluminous data from the past regarding medical diagnoses, life expectancy, damage due to natural disasters, auto accident statistics and myriad other pieces of information. These models help insurance companies predict the frequency and severity of the events they insure against and thereby set their rates.
If, however, conditions that create risks are rapidly changing—as they are now with climate change—models dependent on past data become unreliable. As a result, property and casualty insurers have been stung by huge losses due to severe weather. For example, the California wildfires of 2017 and 2018 resulted in $29 billion in insurance claims. But insurers only took in $15.6 billion in premiums.
Hurricanes and floods resulted in $120 billion in insured losses in 2022. Companies expect insured losses to continue to rise as climate change intensifies.
Sunday, July 09, 2023
Climate change: Our infrastructure is built for another Earth
We humans now face an era of climate that is uncharted for the size and complexity of the human community. Our roads, rails, ports, buildings, electric grid, water systems and food systems are not designed for this new climate. For example, we continue to build infrastructure based on data for rainfall that does not reflect the dramatic changes that are taking place in rainfall patterns and amounts.
In fact, practically all the standards for building our infrastructure to withstand rain, snow, wind, flood and heat are out of date. In addition, termites that weren't a huge problem for buildings in some climates are now causing greater damage as more destructive species spread to new areas.
Our maladapted infrastructure problem is becoming even more obvious now as a combination of climate change and the warm phase of the periodic fluctuation of warm and cool waters in the tropical Pacific Ocean known as the El Niño-Southern Oscillation (ENSO) is bringing record worldwide temperatures. A temperature higher on average across the globe than any previously recorded since instrument readings began in the 1850s was measured on July 3. That record was broken again on July 4, and then again on July 5.
Even during the cool phase of ENSO known as La Niña in 2020 the world recorded an average temperature that was "effectively tied" with the warmest year ever in 2016.
Sunday, July 02, 2023
Autonomous chaos: Self-driving vehicles block emergency services
Self-driving vehicles are stopping in traffic for no apparent reason and blocking emergency vehicles reports the Los Angeles Times. The writer alludes to a famous high-tech shibboleth: "Move fast and break things." But in this case the things that are being broken are the health and lives of California residents who are having to endure the growing presence of so-called autonomous vehicles on the state's streets and highways.
I have repeatedly warned that autonomous vehicles could only be truly safely operated on closed courses where the possible moves of all other vehicles would be known in advance and therefore predictable. Humans and the environments in which they drive will never be that predictable.
Beneath the bravado of the self-driving booster club is a completely obvious truth: Autonomous vehicles can only do what they are programmed to do, and that programming is limited to what their creators can put into words or, more precisely, that subset of language we call code.
Sunday, June 25, 2023
Flash droughts: Are they the new normal?
The state of Illinois is suffering from its driest conditions in more than a decade. In fact, large swathes of the Midwest and Plains states are suffering from extraordinarily dry conditions according the U.S. Drought Monitor.
But a certain kind of drought is becoming more and more frequent: flash drought. The U.S. National Oceanic and Atmospheric Administration defines flash drought as follows:
Flash drought is simply the rapid onset or intensification of drought. It is set in motion by lower-than-normal rates of precipitation, accompanied by abnormally high temperatures, winds, and radiation. Together, these changes in weather can rapidly alter the local climate.
Illinois had been suffering from flash droughts since mid-April when virtually none of the state suffered from drought conditions.