Category: Environment

A rendering of the housing submitted to the design competition, with the geothermal network in the alley highlighted.

Illinois’s new energy act could facilitate geothermal heating for housing

November 9, 2025 / / 0 Comments

When I learned that the Clean & Reliable Grid Affordability (CRGA) Act, passed by the Illinois legislature on October 30, would fund geothermal networks for heating and cooling homes my first thought was a proposal from 2023 to build geothermal wells in Chicago alleys that adjacent property owners could tap into. This is useful because the earth, slightly below the surface, has a near constant temperature of about 54°F so less energy is needed, using a refrigerant, which could be water, to make up the difference between that and the desired temperature in a house.

Blacks In Green, teaming up with Tom Bassett-Dilley Architects, submitted an entry to the “Missing Middle Infill Housing” competition proposed that an entity like the City of Chicago would authorize the drilling of public wells in the alley that each property that abuts the alley could connect to, running pipes from a building owner’s heat pump to the wells to carry thermal energy to or from the house, as needed using ground source heat pumps.

The South Side nonprofit Blacks in Green is pursuing…a plan for a multibuilding geothermal system that will tap steady, year-round underground temperatures of about 55 degrees.

In step one of the project, workers will send plastic pipes 450 feet into the ground beneath Chicago alleys. The pipes, which circulate a fluid that absorbs and releases heat, will loop back to up to 69 buildings in a four-block area of West Woodlawn, powering heating and central air.

–Chicago Tribune

Blacks In Green obtained a grant in 2024 of about $10 million from the United States Department of Energy’s Geothermal Technologies Office, but the latest report about their project indicates that the Trump administration may have tried to freeze the funding (that article is from June and I haven’t seen news since then that explains what has happened since then).

A site plan shows the geothermal network being built in all of the alleys in the area bounded by 65th Avenue, Stony Island Avenue, 67th Avenue, and the Metra Electric District tracks in West Woodlawn. BIG calls this creating a Sustainable Square Mile. Images from TBDA.

In CRGA, the Illinois Power Agency must create a “Geothermal Homes and Businesses Program” so that the agency can “procure” renewable energy credits from new geothermal networks. The agency’s long-term renewable resources procurement plan should allocate up to $10 million per year to stimulate eligible geothermal systems. The program shall begin on June 1, 2028, and 33 percent of the energy procured each year should be from geothermal networks serving residential uses. Read the SB25 bill text.

Perhaps despite the Trump administration’s grants chicanery, the Blacks In Green communal geothermal network can still move forward using state funding priorities that CRGA puts into place.

Reading “climate-fi”

September 7, 2023 / / 0 Comments

Climate-fi is a genre of novels in which the effects of climate change are central to the plot. I have become more of a fan of climate fiction commensurate with the frequency of books being published.

The first climate-fi story I read – before I knew the genre name – was “The Water Knife” by Paolo Bacigalupi. That came out in 2015 and it wasn’t until 2020 that I picked up the genre again.

Here are books I recommend:

  • The Water Knife explores the realistic issues of freshwater supply and who has the right to water sources in the Southwest. This is especially relevant to problems and discussions today, given that people in Arizona are having to buy water from the private market, governments are not approving proposed developments unless they come with new water sources, the state continues to usurp water from upstream freshwater sources, land use is single-use and sprawling, and historic water rights are still a source of conflict.
  • Parable of the Sower, by Octavia Butler. The protagonist and her family live in a tenuous gated community in the near future of a United States ravaged by climate change and other economic and political upheavals. She eventually travels towards a place to establish a better community based on a religion she invents.
  • Ministry for the Future, by Kim Stanley Robinson, opens in the “almost present” day describing a heat wave in South Asia during which the wet bulb temperature challenges the body’s ability to cool itself and many people die. A climate terrorist group forms to force the world to adapt to and mitigate climate change globally otherwise the poorest people will suffer the most during the crisis. (KSR personally sees cities as a climate change solution.)
  • Termination Shock by Neal Stephenson opens with a riveting story of the Dutch queen’s plane crashing in Texas and then winds around the world narrating seemingly unconnected climate change-related events. The story then focuses on how shooting sulfur into the atmosphere has an effect on how much energy of the sun reaches Earth, something that actually happened last year.

What climate fiction books and stories do you recommend?

“Termination Shock” by Neal Stephenson

A short list of features of the Netherlands that I still try to wrap my head around

January 18, 2023 / / 0 Comments

The Netherlands is the country I’ve visited the most, going there eight times between 2011 and 2022. I’ve obsessively visited 31 cities, the Hoge Veluwe national park, and plenty of other places outside cities.

Here are three land use and infrastructure characteristics that continue to fascinate me.

Transportation systems, obviously

Learning about how the Dutch created the safest network of streets for cycling is what started my near-obsession 15 years ago.

Then I went there in 2011 and I got to experience it for myself (photos from that trip).

I think the quality, capacity, likability, and integration of their transportation systems can be summarized best, for Americans who haven’t been there, by learning the results of a Waze survey: People who primarily drive in the Netherlands are more satisfied with the driving in their country than people in other countries are with driving in theirs.

In other words…if you like driving, then you should also care about what the Netherlands because they happened to also create the most driver-friendly transportation system.

Creating land & living with flooded land

As a novice, it’s probably easier to notice and understand how the Dutch create, move, and live with flooded land from above. There have been moments while I was cycling in the country where I’ve ridden past “polders” and former lakes and seas only to realize it later that I had biked through a massively transformed area that appeared entirely natural.

When I lived in Rotterdam for three months in 2016 I tried to visit as many places across the country as I could. I especially wanted to visit Flevopolder, the larger part of the Flevoland province, built from of the sea in 1986 where 317,000 people live.

I visited both major cities on the Flevopolder in the same day, Almere and Lelystad, the capital. I cycled from Almere (photos) to the seafront of Markermeer, and…get this…had to ride uphill because the land is below sea level.

Reaching the edge of Flevopolder, where it borders the sea called Markermeer
Cycling uphill to meet the sea north of the city of Almere, in the Flevoland province of the Netherlands.

Most Dutchies live below sea level, and the country has massive land and metal engineering works to keep the water in check.

The Dutch, especially in and around Rotterdam, come up with new ways to deal with water and export this knowledge abroad.

While the existing and planned measures should be sufficient until at least 2070, too much uncertainty over the progress of climate change remains afterwards to assess whether the city will truly stay liveable.

Some assessments suggest that if the sea rises by 5m – an estimate in sight within a century, considering the unpredictability of the rate that Greenland and Antarctica’s glacier will melt – Rotterdam will have no other choice but to relocate.

“Rotterdam: A bastion against rising sea, for now”
By Zuza Nazaruk

The country may rely on electricity to survive more than most: it’s needed to keep the pumps working, to keep the water in the sea instead of in and over the land.

How productive their agriculture industry is

By land area, the Netherlands is a very small country; it would be the tenth smallest state in the United States. By population, it would be the fifth largest state (17.6 million, greater than Pennsylvania’s 13 million).

Given that, how is it that the Netherlands is the world’s second largest exporter of agricultural products by value, after the United States?

Simple answer: High-quality, high-value, high-demand foodstuffs; space-efficient farming practices, including a significant amount of food grown vertically and in greenhouses. And, I don’t remember if this was in the article, very good transport connections to trading partners through seaports, canals, railways, and motorways.

I was surprised to see that both brands of canned cold brew coffee sold at the convenience store in my apartment building are produced in the Netherlands.

Adanet measuring CO2 concentration in a Target store

I ran errands and measured the CO2 concentration everywhere I went

December 24, 2022 / / 0 Comments

I am starting to take my Adanet CO2 concentration monitor everywhere because I want to see which stores, restaurants, and offices have “fresher” air. The other day on December 20, 2022, I visited a BMO Harris bank branch and a Target store, and I took note of the measurements in three locations within my apartment building.

My goal is to take two readings in each location and photograph the second reading. The photograph provides the proof of the reading in the location I specified as well as a timestamp and GPS that only I can see.

I also took an outdoor reading to establish what the ambient level was that day:
421 parts per million (ppm), which is exactly what the global ambient level is!

Keep in mind that a typical reading in my studio apartment is around 650 ppm.

An outdoor reading of 421 ppm, for reference.

BMO Harris bank branch – 115 S LaSalle St

This is a large bank branch with half a dozen teller stations and a significant business banking area. There were two tellers, a handful of other staff, and myself and another customer – the person density was very low.

Reading: 614 parts per million (ppm)

The CO2 reading was 614 ppm at a BMO Harris bank branch in downtown Chicago.

Target – 1 S State St

A busy department store is where I was most excited to take several readings. I took four readings, all on the second floor.

  1. Men’s clothing department, three minutes after entering the store: 646 ppm
  2. Another area in the men’s clothing department, three minutes later: 785 ppm
  3. A dressing room, six minutes after the previous reading: 913 ppm
  4. Automotive accessories aisle, 15 minutes after: 961 ppm
Photos from inside Target follow the list order above, from left to right.

To give you another reference point, the readings have regularly exceeded 800 ppm – and have exceeded 1,000 ppm if I burn some food – when I’m cooking in my studio apartment. As I write this from there, the reading is 623 ppm.

I was pleased with these numbers at Target; I’m not an expert on assessing air quality but the Centers for Disease Control writes “that indoor CO2 concentrations no greater than 700 parts per million (ppm) above outdoor CO2 concentrations will satisfy a substantial majority (about 80%) of occupants” in office environments – or about 1,121 ppm.

My apartment building

I took three readings in my apartment building:

  1. One of the two bike rooms: 619 ppm
  2. An elevator (I had to visit a lot of floors to wait until I could get a second reading, which also meant the door opened a lot): 788 ppm
  3. Gym (which has two rooms, and I took the reading in the larger room that had fewer people at the time): 596 ppm
Photos from inside my apartment building follow the list order above, from left to right.
Photo of the Adanet sitting on my desk

Say hello to Adanet, my new CO2 concentration monitor

December 16, 2022 / / 1 Comment

I acquired a homemade and open source Adanet carbon dioxide (CO2) monitor from a friend in Chicago and tested it on a short trip on the Brown Line ‘L’. The Adanet monitors the concentration of CO2 in the air, in parts per million, which is a proxy for how “fresh” the surrounding air is.

Monitoring CO2 concentration became a more common activity and point of discussion since the COVID-19 pandemic began. A key way to reduce risk of transmission is to have “fresher” air. I’ll establish that “fresher” air is replacing air that has people’s outgoing CO2 with air that has less CO2, namely outdoor air.

(Another reason to monitor CO2? Excessive CO2 can lead to a decline in cognitive ability and sleep quality.)

I conducted an unscientific test of the “freshness” of the air inside a single Brown Line car on my trip between the Western and Belmont stations. I took five readings, which was the most I could take given that the Adanet refreshes every three minutes.

Map showing gray markers indicating where readings were taken. The trip started at the Western Brown Line station and the last reading was taking just before the train pulled into the Belmont station.

The ambient global measurement of CO2 is 421 ppm, measured in May 2022.

On the transit trip, the lowest reading was 475 ppm, which was taken while the device was in my coat pocket before I boarded the train at the outdoor station.

The highest reading was 680 ppm, when the train car had the most people on it during my short trip.

I have been checking the Adanet since getting home two hours ago.

  • I left it in the hallway outside my apartment and a single reading was 556 ppm.
  • Inside my studio readings have been around 650±20 ppm.
  • The highest reading since I got home has been 830 ppm and this is because I partially burned a quesadilla, releasing additional carbon into the air (my standalone air filter also turned on automatically to deal with the reduction in air quality).
  • I opened the balcony door to let fresh air in and 15 minutes later the reading dropped to between 671 and 692 ppm (the more readings the better).