CO2 Update: Slightly Less Bad News

 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 continue to monitor the CO2 results measured at Mauna Loa, as pretty much the best indicator out there as to whether our recent efforts at mitigating climate change are having any effect at all, or whether the rate of growth of atmospheric CO2 continues to increase as it has for the last atmospheric growth. 

I have been doing this since around 2010, and have only seen two months’ data over that time that suggested there might be some leveling of the CO2 growth rate.  Of course, that is only the first step in saving the planet – the second is to start decreasing the growth rate, the third is to drive the growth rate to zero, and the final step (which is the point at which we will actually be doing something positive about climate change) is to pursue decreases in CO2 until it reaches about 280 ppm (a far harder task than boosting its level). 

The first of the two data points was last May.  For no obvious reason (and therefore the likeliest reason was actual effectiveness in cutting CO2 emissions) May was almost flat compared to April, although April was a normal-growth month and in all previous years since 2010 May has been significantly above April.  Oh well, maybe it was a one-time event.

But then came March of this year.  As I have never seen before, March has been significantly below February.  It still appears likely that May will end up above 420 ppm – an important milestone, since average yearly atmospheric CO2 was around 280 ppm in the early 1800s before human-caused global warming began.  Each doubling of CO2 is projected to be associated with 3-4 degrees Celsius of global warming (perhaps two-thirds of that being directly caused by CO2 itself), so reaching 420 ppm should in the long run be associated with 2-2.67 degrees of warming.  In any event, reaching 420 ppm is clearly unadulterated Bad News.

However, the second downturn from trend in the last year suggests that maybe, just maybe, we are reaching the point of a level growth rate in atmospheric CO2.  This is slightly supported by the fact that the last four years of CO2 growth rates have been in the 2.3-2.5 range – a period which seems to have mixed mild La Nina (inhibiting CO2 growth rates) and neutral (no effect on CO2 growth rates) weather.  Since this is not too far from the typical case across history (El Nino being more of an exception than La Nina), I conclude that there are therefore three possible signs that a leveling of CO2 growth rates may have been reached.

Thoughts on Implications

I admit that I base my thinking loosely on a draft paper by James Hansen et al in which he argued that the maximum number of doublings of CO2 would be three or four (somewhere above 2240 ppm).  This would be achieved, iirc, if approximately 60-70% of the fossil-fuel reserves identified at the time of writing (2013 or so) were burned.  At the pace at which use was increasing at the time, the appropriate amount of fossil fuels would have been burned and its CO2 moved into the atmosphere in 50-60 years time.  Thus, a continued rise in the growth rate of CO2 represents this worst-case scenario:  if the last nine years continued the growth-rate rise trend, then we would have narrowed the time for avoiding the worst-case scenario to 40-50 years in the future – not to mention drastically decreasing the chances of avoiding the first and second doublings. 

Therefore, I argue, what we would have achieved by leveling the growth rate of atmospheric CO2 is at least more time to avoid the worst-case scenario, and at best a major decrease in the probability of reaching the worst-case scenario.  That is the sense in which I say, this is slightly less bad news.  Considering that the worst-case scenario as described by Hansen involves the death of most of the human race, not to mention much of the rest of the environment – in this nightmare scenario, if you go outside in most places to work during the day during most of the year and stay out more than an hour, you will die of heat stroke – anything that reduces that likelihood is to be celebrated.  But the first two doublings involve the deaths perhaps of hundreds of millions to a billion, so we should be clear-eyed about increasing toughness of the job ahead, even with this news, and recognize that those who seek to prevent us from decreasing that growth rate for their own selfish purposes may well be murderers beyond the scale of the Holocaust, or the Holodomor, or WW II. 

But enough of gloom.  Go enjoy the slightly less bad news, he said on his birthday.

Reading New Thoughts: What Do We Want the World to Be When We Grow Up? (Hiss, “Restoring the Planet”)

 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 recently been reading “Restoring the Planet,” by Tony Hiss, and it has prompted some far more general thoughts about the endgame of successful climate change efforts.

Hiss book lays out, more or less, a global if North-America-centered effort to “set aside” 50% of all land from human use, to be achieved by 2050 (giving a nice slogan, “50 by ‘50”.)  He then discusses the ways in which people are using that effort to identify ecosystems and then as far as possible preserve or restore them, free from humanity’s touch. In other words, the areas being saved are then altered if necessary to create, as far as possible, functioning ecosystems having long-term viability without needing constant human intervention.

For example, one such effort seeks to “carve out” existing spaces where animals roam in fixed patterns and connect these via “corridors” that ensure that humans will not decimate the animals but still allow the animals sufficient range to be viable.  Another seeks to reserve remaining “wilderness” by establishing ownership of the property involved by entities dedicated to keeping it human-unaffected.

These efforts, and others, seem to me today to follow disparate ideas of what the endgame is and how to get there, only loosely coordinated if at all.  I believe that what I have seen can be more or less classified into five approaches, or movements:

1.       Sustainability

2.       Regeneration

3.       Human-designed ecologies

4.       No-human ecologies (more or less the approach described by Hiss)

5.       Human-included ecologies

Terms of Ecological Endearment

The approaches I have listed above overlap in some cases – a human-designed ecology may be aimed at creating a long-term sustainable ecosystem, or simply at regenerating an area to repair the damages of the recent past.  What matters, I think, is the goal of the approach, as an exclusive focus on one approach may or may not lead to the promised land of a low-carbon-emissions steady-state global set of ecosystems.  So it seems appropriate to examine each approach in that light.

Sustainability, it seems, it the most-known approach.  It explicitly requires setting up steady-state ecosystems, and only by inference those with low carbon emissions, since otherwise (one guesses) carbon-emission-induced climate change will make ecosystems unsustainable.  There is an unmistakable air of “whatever works” about the sustainability approach – it is thus entirely agnostic about regeneration and human-designed vs. human-included vs. no-human ecologies.

Regeneration, by contrast, seems to say that simply by restoring a previous state of an ecosystem will automagically result in a steady-state low-carbon-emissions environment, because the previous state of the ecosystem had this characteristic.  What makes this questionable is that one can’t walk through the same river twice: due to the Columbian Exchange, few ecosystems are the way they were 500 years ago, before carbon emissions started rising.

Human-designed ecologies is very much, I think, the province of the “new environmentalists”, those who think that we cannot restore ecosystems to a previous state and therefore we are forced to design new ecosystems, using existing tools, that will achieve a steady state.  Since this is a pragmatic approach, it leans toward leaving humans where they are and/or accommodating but constraining them as they continue expanding into the world’s ecosystems.  However, the question arises as to who decides what’s an appropriate end game – clearly, indigenous populations are not on the priority list of those who advocate human-designed ecologies.

No-human ecologies, by contrast, is the ideological leaning of the “old environmentalists”, who based on their experiences in the 1970s at the advent of the environmentalist movement tend to worry that humans, by and large, blight everything they touch.  I believe that this approach accords with the effort, in the US at least, to buy up everything possible not owned by the government (in Massachusetts, the aim is to acquire 80% of the land area) and turn it into places where humans go either not at all or only rarely.  Of course, the lands involved for the most part right now are the ones least subject to carbon pollution.  I would also guess that the main sticking point in the immediate future is places involved in mining, including those minerals involved in solar-power generation, not to mention installation of solar arrays in these areas.

I admit that I am fond of the human-included ecologies approach, because it seems to me more flexible than either the human-designed or no-human approaches.  That is, we make an exception to the no-humans approach where indigenous peoples have a strong track record of living sustainably on the land.  In many cases, these indigenous peoples have been strongly tainted by the modern economy and nation-state institutions, but there is clearly a case to be made that they still are the quickest way to restore a low-carbon-emissions steady state – not to mention the irony of visiting the worst consequences of a no-human-ecology approach on the worst sufferers from our previous “civilizing” emissions-hungry system.

In Which I Vote For All of the Above

I look at all of these approaches from the point of view of a climate-change person who is primarily concerned that we mitigate as fast as possible – that we reduce carbon emissions as fast as possible, with the ultimate steady state, if any, a secondary consideration for now.  Viewed in that light, I believe that each of these approaches is appropriate in a wide range of particular cases, and thus I am happy to “let a thousand flowers bloom” – i.e., encourage each of these movements.

At the same time, each time one of these movements comes into conflict with another, I think it is the right thing, not to commit to one side or another for the long term, but rather to establish rules of thumb for when a particular approach is most appropriate.  I would suggest that among these rules of thumb are:

·         When there are vested human interests in an area, pick the approach that impacts them least (but still minimizes carbon emissions)

·         Likewise, pick the approach that involves the quickest path to a healthy ecosystem (i.e., consider the needs of non-human animals and plants first)

·         Focus sustainability efforts on what seems irretrievably human-dominated – in other words, cities and their irreducible agricultural hinterland.  Since, in the foreseeable future, that comprises much more than half of humanity, but far less than a quarter of all of the land, that means both a human-designed and human-dominated ecology.

I would also bear in mind that each of these approaches, unlike mitigation, asks and tries to  answer the questions:  What do we want the world to be like if and when we cease our immature destruction of ecosystems and achieve a low-carbon-emissions world?  And, how can we ensure that we act maturely from now on and never again risk ourselves and our planet in this way?  For that reason, I would say that, while I would not prioritize any of these approaches over mitigation, they are every bit as important as adaptation to climate change’s effects.  If not more so.

The Climate Change of Our Lives: 2020

 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 written almost nothing for almost all of this year because I have undergone one of those periods where whatever I think of writing seems to me to contribute nothing – someone else has already said what I might wish to say, and done it well.  However, it does seem to me with regard to climate change that, still, no one is consistently monitoring CO2 emissions and drawing conclusions about what they imply for our success or lack thereof in preventing global warming.  So this piece is a retrospective on 2020 and climate change, focusing on what’s going on in CO2 emissions as evidenced by measurements at Mauna Loa.

The 2020 chapter of our lives at Mauna Loa was marked by a pretty consistent monthly atmospheric CO2 rise of 2.5 ppm from 2019’s levels.  This is about in line with the rises of the last two years. 

To me, this is neither good news nor bad news.  I might have expected that the effects of COVID, which over the first ½ of the year apparently meant a 5-8% reduction in global CO2 emissions, would show up in the Mauna Loa figures, but an article on their website noted that it would be difficult to distinguish its effects from the “noise” of normal variation.  Likewise, I might have expected CO2 to increase more rapidly if the pandemic hadn’t happened, simply from feedback effects like increased albedo due to some regions like Siberia and the Laptev Sea melting earlier.  Perhaps the two effects cancelled each other out.

The point, I think, is that for the first year since I started worrying about this in 2010, there seem to be positive developments since the year before that at least match the negative developments.  Of course, we don’t know how much of the clawback of emissions will remain when the pandemic fades some time in 2021, probably due to comprehensive vaccination.  Still, as in Alice Through the Looking Glass, perhaps we are finally running fast enough to stay in the same place, even though we are no closer to the ultimate goal.

Of course, we should not forget those negative developments.  Here’s my own list.

Arctic Sea Ice

Every year I come back to this, because in determining the effects of climate change, what happens in the Arctic doesn’t stay in the Arctic.  And it was indeed another alarming, unprecedented year.  Both extent and volume of Arctic sea ice at minimum were either slightly lower than ever before or second lowest behind 2012, depending on your measurement.  The salient feature of this melting season was the early and unusually large melt in the Arctic Ocean above Russia, and its late remelt, so that the Northeast Passage was open perhaps from late June to early October.  When refreeze occurred, for the first time since I’ve been following things, it happened “up” from the Russian seacoast rather than “down” from the North Pole to the seacoast.  It appears also that at one point the Northwest Passage was open to quite high in the Canadian Archipelago.

What this suggests to me is that rather than reaching a point of higher stability after 2007 or 2012, two years of precipitous drops, we are now pushing against the lower bounds established in 2012.  In other words, the minimum levels in 2013-2019 do not represent a “new normal”, but rather a springback followed by a resumption of (slow) decline.  I fully expect, therefore, to see a clear new record low sometime in the next 3 years, although I will be deliriously happy to  be wrong.  And I won’t repeat, but you the reader should keep in mind, the fallout when, inevitably, the minimum goes to zero.

Disasters and Weather

Meanwhile, the fires, hurricanes, and other disasters partially attributable to global warming were certainly on a par with 2019.  I am told that the cost of these disasters set another record in 2020.  The wildfires in California were certainly notable for the record acreage consumed and for the effect being so widespread in terms of air quality throughout the state.  2020 saw a record number of hurricanes, true, but to me the important point was the continuation of unusually warm water, especially in the Caribbean, that made incipient hurricanes frequently into Level 4 or 5 ones, when in the years before 2019 those would have almost always been Level 1 or Level 2 hurricanes.  And, of course, record-matching flooding from slow-moving hurricanes happened again, as well.

Locally, it was an unusually mild winter overall, with temperatures in February and early March often in the low 50s, while snow never really stuck.  Then summer arrived with consistent 80-plus temperatures around June 20^th, earlier than I can ever remember in my 50-plus years around the Boston area.  The highs in July and August were around 95, not around 90 as in years before, and temperatures in the 80s lasted until mid-October, while the leaves didn’t finish falling until well into November – all of this was unprecedented as far as I know.  And at certain times, winds were far more violent than in the past, although not to the point of hurricane status.  I understand, also, that there’s a new weather term:  “thundersnow” – i.e., thunder and lightning plus snow.

And the New Year

When I look at 2021, I find that for the first time, the things I foresee that are matters for hope outweigh the negative things that I expect may come to pass, although the hopes are slender:

1.       It does appear that President-elect Joe Biden is serious about embedding consideration of climate change in most of the workings of the U.S. government.  I cannot say that I can clearly point to a comparable effort in any other country, if it happens.  The effects on emissions will be minimal, at best, for a few years.  But the cumulative effect of the bureaucracy and the “movement” it creates as it operates on its own momentum could be profound in the medium term.

2.       For the first time, it appears that banks may actually follow through on defunding CO2 emitters, especially in the energy sector.  Because banks are such herd animals, I view this as a potentially serious investment shift away from CO2 polluter firms that may cause far more drastic CO2 cutbacks (except in China and Russia) than we have seen before.

Bear that in mind as, in 2021, I otherwise anticipate echoing my sad findings about 2020.

And Now For Something Completely Different

 For the last week and a half, I have been reviewing and putting in book-like format a series of blog posts I did at Daily Kos 1 ½ years ago on different takes on Tolkien, and in particular on Lord of the Rings.  This morning, as I was editing one of these posts, it occurred to me that no one had ever tried looked at what Tolkien had said about which characters and species in Middle-Earth had beards (including Dwarven females), and which did not.  I imagined calling it “Barbering in Middle Earth.”

Just now, I happened upon a news release about a new “treasure trove” of Tolkien’s writings on Middle Earth, due for publication in June of 2021.  Near the end, it notes that “[t]he new collection will even touch upon which characters had beards”.

That is … eerie.

Another Year Older and Deeper in Climate Debt

As I write this, Australia is burning up.

Reports indicate that due to weeks of unprecedented 104 degree temperatures and drought, wildfires are burning across Australia, driving those who can’t evacuate into the ocean and creating toxic air in the major urban centers.  These conditions are, without doubt, due to human-caused climate change – except that Australia has a large reserve of climate-denier politicians and their allies who apparently are claiming that “if the Greenies had let us clean up the forests this wouldn’t be happening.”

In looking over the last year, therefore, I am reminded of an old coal-miner union song’s refrain:  “Sixteen tons, and what do you get?/Another day older and deeper in debt/Saint Peter don’t you call me, ‘cause I can’t come/I sold my soul to the company store.”  Another year older, and what do I get?  A world that’s deeper in climate crisis than at the start of the year, because we continue to emit not only more carbon than is needed to stop atmospheric CO2 from rising, but more than in 2018 or any year before it.  

In effect, we are creating more and more “climate debt” that will have to be paid, by the Australians, by us, and by our descendants.

Let’s go through the latest dreary numbers.

Possible But Not Clear Hope On The Ground

An enormous shift occurred in societal terms over the last year or two.  For the last nine years or so, efforts in universities, NGOs, individual businesses, and interest groups have created what might be called a “climate change technology movement” in which efforts around sustainability, regenerative economics, solar and wind technology, and the like began, and began to coordinate with each other.  What has happened over the last year has been the embedding of the movement in society, so that schools, politicians, and workers feel comfortable making climate change a major part of the discussion.

What has not happened, as of yet, is the embedding of that movement in the bureaucracy of government, business, and other institutions.  I define a bureaucracy, in one sense, as an organization that operates on its own momentum, driven not by leaders but by the implications of rules and regulations.  In that sense, there is nothing driving considerations of carbon-emission reduction and measurement on a national, much less a global scale.  Nevertheless, there are some grounds for possible hope in this development.

Another possible ground for hope is the surprisingly rapid (to some) development of solar power.  As someone who experienced the power of Moore’s Law in the computer industry at first hand, I always believed that similar technologies in the solar field could lead to reductions in solar cost per watt comparable to computers’ rapid ongoing increases in computational power per dollar.  It now seems to be at the point where, despite the cost of batteries, building and operating an electricity grid based on solar is cheaper than doing so based on coal or oil.  Although we may not yet have reached the day where we are considering replacing operating fossil-fuel systems with their sunk costs and infrastructure designed for fossil fuels only, such a day may be in sight.

But despite this fundamental shift in the culture and the economics, the numbers seem to be telling us that we are not yet clearly making a dent in “business as usual”.  I always look to CO2 measurements (Mauna Loa) as indications of what is happening that cannot be distorted by our hopes, fears, and self-interest – and there the news continues to be grim.

Over the last year, for just about every month except November (2.25 ppm), atmospheric carbon has increased by about 3 ppm since the same month in 2018.  To put this in perspective, this high a rate has only occurred, iirc, in 1998 and in three of the last four years.  In other words, there is no clear sign in the atmosphere that we have begun to deviate from “business as usual”.

If we switched to more suspect numbers, there might be some more local signs of hope:  US emissions, for example, are alleged to be more or less flat over the last few years (although the Trump administration has fueled a slight increase), thereby “decoupling” economic growth from emissions rises – meaning that while the US may not be actually reducing emissions, we at least may not be increasing them.  Some credit for that appears due to energy-efficiency efforts, and some to the solar/wind revolution, while the switch to natural gas may or may not be playing a role – there are strong indications of major methane leaks that may make natural gas just as bad as oil or coal for carbon emissions.

However, we must bear in mind (a) our local and global measurements may not capture all sources; (b) local successes may be partly due to shifting economically to countries with fewer regulations that inevitably emit more than the US or similar operation that it replaced; (c) because of feedbacks and feedback loops, areas not under our control may be emitting more carbon – e.g., the black carbon from wildfires, or carbon/methane from melting permafrost.  Point (c) is especially important:  scientists talk of “tipping points” where atmospheric carbon increases and global warming happen even if we cut our emissions to zero, and so we have to “run harder” (cut emissions more) to stay in the same place (steady increases in emissions), and even harder than that to get anywhere (start achieving smaller increases in emissions).

And therefore, I believe, that is where our one small possible hope in all this gloom lies:  that we may indeed have reached the point where we would have decreased the rate of rise of emissions (if those pesky feedbacks were not occurring).

Final Thoughts

I would, in sad adieu to 2019, like to note the malefactors who continue to drive the climate emergency to new extremes.  I would cite in particular:

1.       President Trump, of course, who has effectively taken a leadership role in driving more emissions of carbon, by letting loose the fossil fuel industry and its enablers on the US government, leading to a bureaucracy that is abetting, by its rules and regulations, both increased emissions and the pollution and food/water problems that make the effects of climate change worse.  Compared to this, trashing the Constitution is minor stuff.

2.       Murdoch and Koch, who are driving these policies into our politics.

3.       Putin, not only for committing to oil as an instrument of Russian policy but also for abetting “Mafia government” across the world that is accompanied by lessened action on climate change, climate-science censorship, and physical repression of activists.

4.       Australia’s Conservatives, who seem to be recreating the denialism of the US Republican party, in a country that is far more economically involved in coal mining and similar emissions-friendly activities than most. 

That’s it.  Maybe next year will be better.  Oh wait, I said that last year.  And the year before.  And …All right, I’ll end in the words of Flanders and Swann:
“Bloody January again!”

CLIMATE CHANGE

I dreamed a dream of golden sands
Where late the sweet birds flew
And at dune’s height a small child’s plastic shovel stood stuck
As if to bid our summer adieu

Over the crest, the lonely beach stretched endlessly
And, amid its wrack, seen only by me
Seethed the dead, the conquering sea.

REFLECTIONS ON AN AMERICAN CELEBRATION

This land is not a land
It’s an idea.

Sometimes we fear that idea,
We spit on it, we trample it.
Then we pick it up, we dust it off, we pat it on the head.
Ideas don’t mind.
People do.

Today we celebrate our land,
Tomorrow we go back to the fear, the spitting, the trampling,
Or even worse, the indifference.

But there’s a problem.

People die; land dies; countries die;
But ideas do not have to die.
But ideas must grow, or they will die.

Greatness is momentary in the flesh,
But in an idea endlessly growing,
It is immortal.

So when we celebrate our land today,
We are only picking our idea up, dusting it off, patting it on the head.
We need to do more.

We need to overcome our fear of our idea,
And right its wrongs,
And help it grow new lofty mansions,
As the seasons roll.

Else tomorrow, we may find that our idea is dead.
And when our idea is dead,
Our country might as well be dead.

For why should anyone care any more about our country or us
Than any others?
We will no longer have an idea
To protect us people somewhat
From the fear, the spitting, the trampling.

This land is not our land.
Because it’s an idea.
People don’t own ideas;
Parents don’t own children.

And so, today,
Ask not what your country can do for you.
Ask what you can do for your idea.