Showing posts with label heat wave. Show all posts
Showing posts with label heat wave. Show all posts

Tuesday, August 13, 2019

Why I went underground and how I am enjoying my new subterranean life


Here is one of the windows of my new home. No, not the big one. Look at where my wife, Grazia, is pointing. Yes, that one!


This summer in Florence we already had two vicious heat waves. As I am writing, we are in the middle of the third one, even more vicious. It has been, actually, a continuous period of very high temperatures punctuated by a few storms that brought the usual floods and disasters.

Global warming is no joke. If you don't plan for these heat waves you seriously risk your life, especially if you are not so young and you are not in perfect health. And people do die: we don't have statistical data for this year, yet, but the reports from countries like Europe, India, and Japan tell of tens, maybe hundreds, of victims and thousands hospitalized.

As usual, people here and everywhere in the world suffer from the syndrome that Daniel Pauly calls "shifting baselines." They seem to think that it is all normal because that's what they have been seeing during the past decade or so. And they don't seem to realize that they are living in houses that were designed and built in a world where heat waves were occasional and lasted just a few days, not the rule for more than one month per year.

Most homes in Florence have no air conditioning or have the kind of makeshift units that make a lot of noise but don't do much to lower temperatures. Some people insist on saying that air-conditioning is "not ecological" because it consumes energy. In other cases, the city regulations forbid people to install the external unit of a truly efficient air conditioning system. And, worst of all, very few people realize how bad it is going to be in a few years from now.

So, I have been preparing for what's coming. I told you already how we (me and my wife) decided to move from a big, American-style suburban home to a smaller apartment, downtown. It was for several reasons, but one was that our former home was so large that it was impossible to cool it in summer at reasonable costs. So, we chose an apartment that would be especially suitable to survive these terrible heat waves even without air conditioning. An underground apartment.

Actually, our home is not fully underground, It is on the slope of a hill, three sides are against solid rock but the fourth, the North side, opens on a small garden. That's the only side having large windows, but the sun never shines on them. That was part of the choice: it was to keep the house cool. Here is a picture of our living room.


And here is the garden, in the background you can see the bomb shelter that came with the apartment, it is a WWII relic. It is not supposed to be used against heat waves, but it could be useful again for its original purpose, who knows?



Here is my studio, the room that corresponds to the "slit window" shown at the beginning of this post. The picture is taken in a moment when the sun shines exactly on that window, normally the room is much darker, of course. But it is the kind of place where you can concentrate on your work.


The apartment is not very large, but more than enough for two people. It has two bedrooms, kitchen, two bathrooms, storage space, and more things, but I guess what you want to know at this point is how it performs during heat waves. And, I can tell you it performs beautifully.

As I am writing this post, the temperature outside is about 39°C  (102.2°F). Inside, the thermometer marks 26.3 °C, I never saw it going over 26.6 °C (80 °F), so far. No air conditioning, windows are tightly shut. It is a reasonably comfortable temperature although we found we needed a dehumidifier running full time to bring the humidity in the comfortable range of less than 60%. (*)

For comparison, my mother-in-law apartment is nearby. It is an old building with massive walls, but also with windows facing South. With the air conditioning off, it touches 29 °C. My daughter's apartment is on the second floor of a modern building. It arrives at 30-31 °C if the air conditioning is off. Some people tell me that their apartments downtown Florence reach 33-34 °C (91-93 F). That starts to be uncomfortably close to that upper limit of survivability marked by a "wet-bulb temperature" of 36 degrees. Not a joke: heat kills.

So, what's the idea of going underground? Why not just use air conditioning? Sure, it could be done. But there is such a thing as the possibility of a black-out, you heard what happened in England these days. Now, if that happens in Italy at the height of a heat wave perhaps you won't die, but for sure you'll suffer horribly.

But can everybody live underground? No, of course not. Some people do, even in Florence there are plenty of basements used as living quarters. But that's not a good idea: Florence is built on an alluvial plain that's periodically reclaimed by the Arno river. It happens infrequently enough that people forget about these periodic floods -- the last big one was in 1966. But they are unavoidable and if you live in a basement in Florence you have to think that, eventually, you'll have to get out of it swimming, if you can. Our apartment, instead, is built on the slope of a hill and it is safe from flooding. But you can't build the whole city on the slope of a hill.

What you can do, though, is to build houses made to withstand the heat waves that will become worse and worse as time goes by. How to do that is no secret: the house must have a large thermal mass to make it able to absorb the heat. It may be underground or partly underground, it may have massive walls, or it may have other tricks to store heat away from the living quarters. But it shouldn't count 100% on air conditioning: besides being wasteful, it may not be healthy and not even comfortable.

So, we have been spending this sizzling hot summer tucked in this basement home. An interesting experience. Looking through the window at the haze of the heat, the feeling was like we were living in a science fiction novel. We had landed in an alien planet, too hot for humans to live, and we had to stay inside our spaceship to survive. Maybe that's our destiny in any case: a planet too hot for humans to live, at least during the summer. It is a concept explored by Antonio Turiel in a science fiction story published on his blog "The Oil Crash" titled "Dystopia IX (in Spanish). Maybe we'll really need spacesuits if we want to venture outside in Summer. Who knows?


Elon Musk's spacesuit was designed for Mars, but it could be useful here, on Earth, if things keep going the way they have been going.



(*) We'll have to see how the apartment performs in winter. I expect the rock to act as heat reservoir, but in reverse, so that it may be warm and comfortable with just a little help from the central heating system. Of course, the place will be a little dark but, hey, my ancestors lived in caves, who am I to criticize them?



Saturday, August 15, 2015

Happy August 15th (and a little rant from UB)

August 15th is a big holiday in Italy. Here is a translation of the post I published today on the Italian version of this blog.




An image of the "new normal" in Italy. In Florence, a downtown shop tries to fight the heat wave of this summer by installing an air conditioner, without worrying too much about spewing hot air right onto the hot and sweating tourists.


Happy Aug 15th, everybody! Here, in Florence, the worst seems to be over and the forecasts tell of rain today and tomorrow. This July has been the hottest ever recorded in Italy, but we suffered, on the whole, only limited damage. We had more than a month of brutal heat, but also some rain that eased the problem of the forest fires. Now, we can hope to arrive to September without big troubles, at least in terms of sheer heat. 

It is sure, anyway, that this Summer we got a taste of what the "new normal" is going to be. Apart from the horrible heat, we saw a number of spectacular disasters created by bad weather. I can tell you that I had never seen the roof of a house blown away by the wind. I had seen something like that only on TV, and mainly in the US, where the wooden homes always have that look as if they were coming from the tale of the three little pigs and the big bad wolf. But seeing the roofs of concrete buildings in Florence being ripped off and deposited in the courtyards, below, well, it has been a shock.

So much the shock caused by these events, that on TV someone mentioned the term "climate change". Fortunately, they immediately found an "expert" who appeared on screen and said that everything was fine and that it had been just a normal summer thunderstorm. 

Apart from the shy, and immediately removed, intrusion of the real world on the TV screen, Italy continues to operate in conditions that I would call "political Alzheimer." That is, conditions in which the patient continues to repeat the same things over and over, without reacting to external stimuli. So, we vaguely remember that, in the past, there was a good time in which the economy was growing and there follows that there is nothing else and nothing more than pursuing growth to fix all the problems.

This catatonic form of politics is not a fault of any specific political force. The faces we see on TV are a little like what people saw in one of those old "houses of mirrors" in amusement parks. Distorted mirrors would return your image as taller or shorter, fatter or thinner, crooked or straight; but it was always the same person. So, the politicians ruling Italy today are just slightly deformed reflections of the society that has produced them. It is us: we are aggressive, disoriented, angry, and without ideas. 

On this point, there is a very interesting post by John Michael Greer (the "archdruid") titled "the war against change."  Greer maintains that the traditional distinction between "progressives" and "conservatives" has been replaced by a situation in which the progressives became conservatives in the sense they oppose any and all change, whereas the conservatives still favor changes, provided that they will worsen things considerably.

This view can be perfectly applied to the Italian situation, with the so called "left" that shows a deep hate for renewable energy and for everything sustainable, whereas the right continues to push for drilling more and drilling deeper in order to get more energy from the sea of oil on which, notoriously, Italy floats. This idea of the right is being applied with great enthusiasm by the left, presently in power.   

But I would also say that Greer is somewhat optimistic, in the sense that the ongoing mental paralysis is affecting all political forces, both on the right and on the left. And it is not just a problem of the political parties: it is the entire Italian society that can't find anything better to do than to blame the bugaboo of the moment, be it Putin's Russia, Merkel's Germany, or whatever. And a good fraction of the public seems to find refuge in the most extreme forms of conspiracy theories, those which are unseemly for the dignity of the human condition, such as chemtrails and the upcoming new ice age. 

All right, sorry for this little rant from me. But, really, it is impressive to note how nothing moves in the debate, while we are facing gigantic changes in the ecosystem and in the economy. Do we have any hope to see something moving in the future? Hard to say. Surely, 2016 will be hotter than 2015, and 2017 will be even worse. But, on TV, there will always be some "expert" telling people that everything is normal. 


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Note: to be sure, this 2015 has seen one big change in terms of new ideas. The "Laudato Si" Papal encyclical. It is impressive how this set of  ideas comes from the Church of Rome, the bugaboo of the old and rigid "left," who once were priding themselves of the definition of "progressives." It reminds me of Tonybee, when he placed himself in the position of an ancient Roman and asked: "what good can ever come out of Bethlehem?" And yet....



Who

Ugo Bardi is a member of the Club of Rome, faculty member of the University of Florence, and the author of "Extracted" (Chelsea Green 2014), "The Seneca Effect" (Springer 2017), and Before the Collapse (Springer 2019)