Last Updated March 4, 2016
CLIMATE change is not air temperatures. Air temperature is one part of the pattern of increased total earth energy that constitutes climate change or “global warming.”
Air temperature is also a very variable part of the total global warming phenomenon. Other key earth systems that are directly affected by climate change – such as oceans, our near polar regions’ enormous ice sheets, and vast expanses of permafrost areas both at the bottom of the sea and atop the land – play a large role in how much air temperatures ultimately increase, and climate changes, and right now are more important than air temperature changes, though dwarfed in coverage and attention by the latter.
What mattters is the total heat accumulation of the earth – oceans, ice sheets, land surface, and permafrost areas, and our oceans can absorb an enormous amount of energy. As can ice sheets, as they slowly warm and start to turn some of their substance into water
So shorter term geologic changes in the general average rate of ambient global air temperature rise is not a “pause” in climate change or global warming, or anything of the sort. (Unless the otherwise misleading term “global warming” only and specifically refers to ambient air temperatures, and ignores the larger, far more complete, and far more important picture.)
It’s a change in ambient global surface air temperature rates; which were volatile (and unpredictable, particularly over shorter periods of time) both before anthropogenic climatec change, and even more so as a result of it.
But even the idea that more general ambient air temperatures have “paused” is itself largely fiction, as the temperature trend into the 21st century and right up to this very month continues, and is now increasing in rate again. As it had as well into the 90s, and as part of what climate change is – high and at least somewhat imperfectly predictable variability: Not this imagined phenomenon of low short term variability, and nice symetrical linear progression that superficial or incorrect analyses, soundbite news coverages, and most so called “skepticism,” implicitly frames it as.
That is, changes in the rate of temperature increase alone are as apt to be occurring as we march forward in time as not, and based upon what climate change is: Namely, a highly variable unpredictable and almost definitively non linear alteration of the climate, as total earth atmospheric net energy accumulates as a result of a geologically significant increase in long lived atmospheric thermal radiation (earth’s “insulation layer”) that’s now occurred in an incredibly short geologic period – an increase now that in the case of carbon dioxide alone has reached atmospheric concentrations that the earth hasn’t seen in millions of years. And not only is carbon dioxide not only not the only gas of concern, another may wind up being as, if not in some ways, more important in terms of the risk of potentially rapid and large shifts or lurches in climate that continue to grow.
Additionally, recent studies further suggest that the short term decrease in the rate of temperature increase alone – changes which, again, based upon what climate change is, are as apt to be occurring as we march forward in time as not – didn’t exist.
Yet adding to the confusion (and a story worthy of attention), even quasi “skeptic” sites – such as the one by this frequent U.S. congressional climate change testifier, scurried to denounce the aforereferenced study. And did so while, naturally, once again completely missing the big picture. (Notice, for example, notice, among other things, the long extensive cherry picking of an unnamed “international journalist” in order to reinforce pre existing, and fundamentally incorrect, framing of the issue.)
But the hiatus re-analysis – the fact that the slight short term average air temperature increase rate either slightly temporarily slowed or didn’t – wasn’t that relevant to the bigger issues we’re presented with.
(Update: Note that while all this misguided fuss about a “pause” was going on, 2014 set a record for the warmest air temperatures globally ever recorded. Only it didn’t last long, because 2015 shattered the mark, setting a new world record, air temperature wise, for the warmest year ever, and shattering the 2014 mark. Then for good measure, January 2016 didn’t just set the record for the hottest global January ever recorded, it also set the record for the highest deviation above the norm, or anomaly, for any month of the year, any year, ever recorded in mankind’s history. Quite the “pause.” And now, from the first set of data in – tropospheric satellite data, February 2016 has not just, one month later, beaten the previous record set in January for the hottest anomaly above the “norm” once again, for any month ever recorded, it smashed it.
On the other hand, the above referenced study suggesting no substantive decrease in the overall rate of increase of globall air temperatures in the first 15 years of this century, does add clarifying information. And it helps refine our body of knowledge regarding the process of climate and, in particular, temperature modeling.
Temperature modeling itself is something, of course, which following the same pattern of both misunderstanding on the basic climate change issue, and widespread “advocacy” against the idea of anthropogenic climate change, is in turn then itself often misunderstood, and even widely misconstrued to fit a pre determined conclusionm and erroneously used to try to refute climate change.
This process of misconstruing future temperature modeling, or projections, is itself, again, part of a broader pattern of trying to reinforce a belief or “view” by any argument possible, rather than the dispassionate, objective assessment it professes itself to be. (Here’s a good example, very similar to what runs rampant on countless “scientific” sites, to some extent among almost half of United States politicians and legislators, and of which there are probably, literally, many millions of similar examples just on twitter alone – itself a great venue for soundbite rhetoric:
Yet this pattern of trying to advocate or perpetuate a desired view by any argument, despite a fair amount of counter productive disbelief about this fact among many who are more accurately aware of the real climate change problem, not only professes itsejf to be objective, but in order to continue belief in its conclusions, also generally believes itself to be objective; and in many skeptic circles, the group – and, presumably, unlike climate scientists – practicing “real science.” By conflating the phenomenon of climate change with air temperature alone, it’s also a pattern which is often inadvertently, if mistakenly, reinforced. (Albeit less so lately now that global temperature records are sudddenly being set at a fairly rapid pace.)
Related to this, and helping to drive some of the misunderstanding that leads to incorrect if believed analyses and rhetoric on the subject, there is essentially a false idea that climate change, even now in its earlier stages, is largely air temperature, and again not the far more important net accumulation of energy that’s slowly affecting earth’s basic energy systems – including of course the ones that drive and shape future climate. This is causing a lot of misunderstanding on what the issue really is, as well as misunderstanding of the fundamental – and, in terms of amount plus speed, geologically radical – long term atmospheric alteration driving it. And it’s leading many to wrongly assume climate change is a sort of quick response to increased greenhouse gases – i.e., they go up, and voila, climate is different.
That’s not what it is.
Increased long term greenhouses gases do immediately absorb and re radiate more thermal radiation emanating off of earth’s various surfaces. But most of that increase in energy retention then goes into slowly re shaping our net earth atmosphere’s energy balance; changing our oceans, and even large swaths of permafrost, hard land surface and subsurface temperatures, ice sheet temperatures, and even ice sheets themselves.
And this, along with the atmospheric change originally driving it, increases not just the amount of potential thermal radiation to be emitted from earth’s surfaces long into the future, but also rehapes the amount of energy even absorbed in the first place, as earth’s albedo – or reflectivity – slolwly changes. And, further amplifying an ongoing process of change until a new stases is reached, long stable stores of carbon also begin to change, and release in the form of additional greenhouse gases – and in a potentially very dramatic way, powerful signs of which we are already beginning to see.
This is a simplification, of course, as ice sheets take energy and translate it into melting ice sheets, and not atmospheric or even ocean warmth.
But these in turn don’t just affect a host of processes, but slowly break down the long term stability of the climate moderating caps, ice sheets, and average global sea ice formation averages and, along with other processes such as permafrost and glacial melt, decrease the amount of solar radiation simply reflected back into space. And which, down the road, will then instead be emitted as much longer wavelength thermal radiation which is then “trapped” by the greenhouse gases in the atmosphere – increases and all – whereas reflected sunlight isn’t.
Ocean currents change, unpredictably; precipitation patterns change, unpredictably, as total net energy increases, the total potential for both more powerful and intense weather events increases, and both more and more water vapor is potentially evaporated from slowly increasing temperatures, with a warmer atmosphere then capable of retaining far more moisture, leading to unpredictable yet in many regions, likely almost complete shifts in not just volatility and precipitation event intensities, but precipitation patterns and weather patterns.
And so on.
It’s not just air temperatures, but a host of more complex factors, as earth’s system adjusts to the large ongoing increase in trapped atmospheric energy in an ongoing process that will only “relatively” stabilize decades to possibly even centuries after atmospheric levels of long term greenhouse gases have themselves relatively stabilized.
Thus, the goal should be to lower total long term ambient greenhous gas levels at this point, as the world’s leading glaciologists, and countless other experts, strongly suggest. Unfortunately, right now we’re still increasing long term ambient greenhouse gase levels. And, again, as permafrost regions melt and release carbon, and possiblly to likely sea floor methane eruptions start to slowly snowball, we may start to get a significant amount of amplifying help as the future unfolds; not help in reducing long term atmospheric greenhouse gas levels, but in further adding to them.