Disclaimer: I am now retired, and am therefore no longer
an expert on anything. This blog post
presents only my opinions, and anything in it should not be relied on.
I have finally gotten around to talking about two books I
recently read, tomes that have greatly expanded my knowledge of the details and
difficulties of reducing carbon emissions drastically. These books are Peter Kalmus; “Being the
Change” and David Owen’s “Where the Water Goes”, and I’d like to discuss the
new thoughts I believe they give rise to, very briefly.
Kalmus and the Difficulties of Individual Efforts to Cut Carbon Emissions
“Being the Change” is a bit of an odd duck; it’s the personal
musings of a physicist dealing with climate change at the level of cross-planet
climates, on his personal efforts to reduce his own greenhouse-gas emissions. Imho, its major value is that it gives perhaps
the best explanation I have read on the science of climate change. However, as promised, it also discusses
Kalmus’ careful dissection of his own and his family’s lifestyle in terms of carbon
emissions, and his efforts to reduce these emissions as much as possible.
At the start we find out that Kalmus has been successful in
reducing his emissions by 90% over the course of a few years, so that they are
only 10% of what they were at the start of the effort. This is significant because many scientists’
recommendations for what is needed to avoid “worst cases” talk about reductions
of 80-90% in a time frame of less than 25 years. In other words, it seems at first glance that
a world of individual efforts, if not hindered as they are now by business
interests or outdated government regulations, might take us all the way to a
carbon-reduced world.
When we look at the details of Kalmus’ techniques, however,
it becomes apparent that a major portion of his techniques are not easily
reproducible. In particular, a significant
chunk of savings comes from not flying any more; but he was flying more than
most, as a scientist attending conferences, so his techniques extended
worldwide are more likely to achieve 50-70% emissions reductions, not
80-90%. Then we add his growing his own
food while using “human manure” as manure; and that is something that is far
more difficult to reproduce worldwide, given that perhaps 50% of humanity is
now in cities and that scavenging human manure is a very time-consuming activity
(not to mention borderline illegal is some jurisdictions). So we lose another 10-20%, for a net
reduction of 30-60%, according to my SWAG (look it up).
The net of it is, to me, that using many of Kalmus’ techniques
universally, if it can be done, is very much worth doing; but also changing
business practices and adopting government policies and global efforts is
necessary, whether we do our individual efforts or not, to achieve the needed
drastic reductions in carbon emissions, over a short or a long time
period. There are two pieces of good
news here. First, Kalmus notes that he
could have achieved further significant personal reductions if he’d been able
to afford a solar-powered home; and that’s something that governments (and
businesses) can indeed take a shot at implementing worldwide. Second, I heard recently that my old junior
high’s grade school was now teaching kids about individual carbon footprints ("pawprints") and what to do about them. Yes, the
recommendations were weak tea; but it’s a good start at spreading individual
carbon-emissions reductions efforts across society.
Owen and the Resistance of Infrastructure, Politics, and Law to Emissions Reductions and Sustainability
Nominally, “Where the Water Goes” is about the Colorado
River watershed, how its water is allocated, and changes due to the evolution
of the economies of neighboring state plus the pressures due to increasing
climate-change water scarcity, increased usage from population growth, and the
need for sustainability and carbon-emissions reductions. What stands out about his account, however, is
the weird and unexpected permutations of watershed management involved. Here are a few:
·
The Colorado originally did not provide enough
water for mining, except if it was reserved in large chunks for
individuals. As a result, a Law of the
River set of water-use rights has grown up in place of the usual “best fair use”,
where the older your claim to a certain amount of the water is, the more others
whose use of scarce water you pre-empt.
·
An elaborate system of aqueducts and reservoirs
that feed water to cities from Los Angeles to Denver.
·
Rural economies entirely dependent on tourism
from carbon-guzzling RVs and jetskis used on man-made lakes.
·
Agriculture that is better in the desert than in
fertile areas – because the weather is more predictably good.
·
A food-production system in which supermarket
chains and the like now drive agriculture to the point of demanding that individual
farmers deliver produce of very specific types, weight ranges, and quality – or
else;
·
A mandated cut in water use can lead to real-world
water use increase – because now users must use draw more water in
low-water-use periods to avoid the risk of running out of their “claimed amount”
in a high-use period.
Owen’s take is that it is possible, if people on all sides of
the water-scarcity issue (e.g., environmentalists and business) sit down and
work things out, to “muddle through” and preserve this strange world by
incremental adaptation in a world of increased water scarcity due to climate
change, and that crude efforts at quick fixes risk the catastrophic breakdown
of the entire system. My reaction to
this is quite different: to change a
carbon-based energy system like the Colorado River is going to take fundamental
rethinking, because not only the “sunk cost” infrastructure of aqueducts,
reservoirs, and irrigation-fed agriculture, plus rural-industry and state-city politics
reinforces the status quo, but the legal system itself – the legal precedents flowing
into real-world practices – metastasizes and elaborates the carbon excesses of
the system.
For this particular system, and probably in a lot of cases, I
conjecture that the key actors in bringing about carbon reductions are the
farmers and the “tourism” industries.
The farmers are key because they in fact use far more water than the cities
for their irrigation, and therefore carbon-reduction/sustainability policies
that impact them (such as reductions in pesticides, less meat production, or less
nitrogen in fertilizers) on top of water restrictions make their job that much
harder. It is hard to see how anything
but money (correctly targeted supports and incentives) plus water-use
strategies focused on this can overcome both the supermarket control over
farmers and these constraints to achieve major carbon-use reductions.
Meanwhile, the “tourism industries” are key because, like
flying as discussed above, they represent an easier target for major reductions
in energy and carbon efficiency than cities. On the other hand, these rural economies are
much more fragile, being dependent on low-cost transport/homes in the RV case, and
feeding the carbon-related whims of the rich and semi-rich few, in the jetski
case. In the RV case, as in the farmer
case, money for less fossil-fuel-consuming RVs and recreation methods will
probably avoid major economic catastrophe.
However, I repeat, what is likely to happen if this sort of
rethinking does not permeate throughout infrastructure, politics, and the law,
is the very major catastrophe that was supposed to be avoided by incrementalism,
only in the medium term rather than in the short term, and therefore with
greater negative effects. The tourism
industries will be inevitable victims of faster-than-expected,
greater-than-expected water shortages and weather destruction. The farmers will be victims of greater-than-expected,
faster-than-expected water evaporation from heat and weather destruction. The cities will be the victims of resulting
higher food prices and shortages.
What Owen’s book does is highlight just how tough some of
the resistance “built into the system” to carbon-emissions reductions is. What it does not do is show that
therefore incrementalism is preferable.
On the contrary.
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