Not your grandparent’s air
When I was born, the earth had 355 parts per million of carbon dioxide in the atmosphere. When my parents were born, it was 315 ppm. Just twenty years before them, my grandparents came into a world of 305 ppm.
My wife and I became parents on August 12, 2021. Our child, 32 years my junior, emerged at 415 ppm.
Over four generations, people that I know and love both witnessed and contributed to the creation of an entirely new climate.
It’s unequivocal, humans have already added 1.5° C of warming to our world’s atmosphere[1], that was the recent news from the Intergovernmental panel on climate change (IPCC).
This amount of greenhouse gasses has not existed in the earth’s atmosphere for over 3 million years. When these levels did exist, the earth was between 2 - 3° C warmer. Thermal inertia is off to the races.
Keep it Simple
I should have avoided my fatal flaws – I’ve already been speaking in Celsius, a metric we don’t take kindly to round here, and abstractions, such as, how does one conceptualize one part in a million?
The truth is, climate science is infinitely complex, and also extremely simple.
Burning super old dead stuff, i.e. fossil fuels, adds greenhouse gases to the atmosphere, trapping more and more heat in the process.
Before humans figured out we could burn super old dead stuff, there was a relative balance for a (geologically) short 800,000 years. Carbon dioxide and global average temperatures increased and decreased in lockstep. Land and sea absorbed carbon from the atmosphere and then returned it back in a long cycle of photosynthesis, respiration, birth and decay. These natural fluctuations swung CO2 from between 150 to 280 ppm, no more, no less.
For perspective, even around 300 ppm, my grandparents entered a world of greenhouse gas concentrations touched only once prior in that 800,000 year period. The industrial revolution was already leaving its mark.
The issue is – all that super old, dead stuff is loaded with ancient carbon, which is added to today’s atmosphere that would otherwise not have been there. Before we unpack that fully, I want to break more rules and talk abstract.
Mine your own time
At some point early on in my torrid relationship with climate and energy, I was exposed to the idea of mining your own time. The author and physicist, Peter Atkins, wrote about the concept in a book he published called The Second Law, a beautiful and whimsical journey through the heady ideas of thermodynamics. Atkins also published the textbook on Physical Chemistry, so has an appreciation for the technical and philosophical!
Atkins approached the concept from an energy perspective. When we burn fossil fuels such as natural gas, coal, and oil, we are burning solar energy, just that of thousands to millions of years ago trapped in the form of decaying organic matter. It appeals to the ethos of leaving a place better than you found it to use as little as you need and to not disrupt ancient forms of energy for momentary comforts.
The philosophy of the idea is a beautiful as it is challenging to put into practice.
To take the abstraction one step further, thermodynamics is ensconced with the principle of entropy, a quantifiable property of randomness that never decreases of its own volition. Only with inputs of energy can order be created and entropy minimized.
With this idea of order and disorder lodged in your brain – think of fossil fuels as long, well-organized chains of hydrocarbons. Today’s fossil fuels took the immense radiation of ancient sunlight, photosynthesized that energy to create organized bonds that then got locked in the earth by even more heat and pressure. This took generations and generations of taking and organizing energy. It was a herculean initiative of natural processes, incubated by hard-to-imagine quantities of time.
Combustion of fossil fuels takes oxygen and heat to destroy those chains of hydrocarbons unleashing energy and entropy in the process. The unanswerable question is what is to be made of the vast additions of entropy to our world?
We took millions of years of organizational efforts and released their entropy within a couple hundred years. Surely there are implications of this.
Minimize Entropy
The war on an unseeable physical property is certainly not going to garner bastions of concerned global denizens. Fight entropy! Philosophical chaos cannot be good!
Conveniently though, in the context of our modern world this blind, thoughtless entropy creation through combustion of fossil fuels has a parallel story.
The endless entropy created by the combustion of fossil fuels is wasteful and inefficient. So, combatting waste and inefficiency is less abstract. But without a concrete downside, that even is a bit of a Puritanical argument to advocate for less wasteful use. The downside is emissions that are causing the climate crisis. The entropy released by burning fossil fuels is paralleled by the carbon emissions spewed. Those emissions do have a downside.
We’ve bridged the gap.
The war on entropy continues!
Mine your own time.
[1] More precisely, enough greenhouse gasses have been added for 1.5°C of warming, but the earth has only observed 1.1°C of warming because the burning of fossil fuels sends aerosols into the atmosphere that contribute a 0.4°C cooling effect.