Archive for the ‘Anthropocene’ Category
After all, it is almost 4 months since Mark Carney said as much at the Bank of England: http://www.commondreams.org/news/2015/09/30/bank-england-head-warns-potentially-huge-risks-literally-unburnable-fossil-fuel
It is also 20 months since Lloyds of London urged financial investors to consider the risks of continuing to back fossil fuels: http://blueandgreentomorrow.com/2014/05/09/insurers-should-consider-climate-risks-says-lloyds-of-london/
No wonder academics that have watched 50% of the Great Barrier Reef disappear in the last 30 years – and say it will all be gone in another 20 years – are almost reduced to tears:
‘Does Australia Care About Saving The Great Barrier Reef?’ (Andrew McMillen, in GQ Australia, 18 January 2016)
The Guardian may be five years late with it’s warning that humanity has now delayed the onset of the next Ice Age by 100 thousand years – a prospect first highlighted by the Geological Society of London in 2010 – but this is no excuse for the oil industry to continue to deny the nature of reality.
The game is up. Now is the time to invest in non-fossil alternatives that could even make Forumla1 carbon neutral. Alternatives like the mixed alcohol fuels being produced by Bioroot Energy: Fuels that can be created from any waste product containing carbon.
This is the hydrocarbon equivalent of the nuclear industry’s Fast Breeder Reactor, which could burn all the world’s nuclear waste and the 99% of the Earth’s uranium that a conventional reactor cannot burn and, when we’re through with all of that, we could extract uranium from seawater…
Whilst I have the greatest of sympathy for all those affected by flooding in Cumbria, they should not seek to blame the government or the Environment Agency.
If anybody is to blame it is the fossil fuel industry, which has spent the last 50 years trying to discredit climate science and climate scientists, in a short-sighted and mean-spirited attempt to prevent effective regulation of the pollution caused by burning their products.
A warmer atmosphere can hold more moisture more of the time.
14 of the last 15 years have been the warmest on record. This rainfall in Cumbria is the highest on record for any 24 hour period in over 300 years.
How many more statistical records must we see broken before the denial of the validity of climate science becomes as socially unacceptable as farting in an elevator?
I have been looking back at some of my earliest posts on this blog; and have decided that now would be a good time to pull together some of the key points I have highlighted over the years – regarding anthropogenic climate disruption (ACD). I prefer the use of ‘ACD’ because it is far more accurate than more popular terms such as ‘climate change’ and ‘global warming’.
Firstly, then, ACD is an observed multi-decadal reality that cannot be explained by natual causes (i.e. sunspot cycles or volcanic eruptions, etc). See:
Comfortably numb is not good enough (3 September 2012).
The reason we keep getting double six (7 August 2012).
Secondly, climate science is not complicated or contentious, it is simply inconvenient for big business to accept. This is why the fossil fuel industry has spent the last 50 years trying to perpetuate the myths that it is both of these things. See:
Climate science in a nutshell – Part 1 (31 October 2011) (see also Part 2 that followed it).
Peddlers of doubt – monkeys or organ-grinders (20 Feb 2012).
Thirdly, and most importantly, the key thing to which the title of this post alludes: Research by a team at the University of Oxford published in 2009, which I first referenced in the first month of this blog’s existence (August 2011). This research shows that it is the total (i.e. cumulative) amount of fossilised carbon that we (have and will) put into the atmosphere that will determine the temperature change we will see over the next 50 years or so.
As per the Climate Change By Numbers programme on BBC4 Television, climate scientists are agreed that, in order to avoid irreversible and unsurvivable changes to the Earth’s climate, humans need to avoid adding 1 trillion tonnes of fossilised carbon (1000 GtC) to the atmosphere.
It therefore strikes me now, looking again at the above graph, that limiting global cumulative emissions of fossilised carbon to 1000 GtC will only be feasible if emissions peak within the next 10 years and the later the peak the more rapid the phase-out needs to be to keep the area under the graph the same (i.e. equivalent to 1000 GtC).
Governments around the world were very slow to react to the existential threat of the Ebola outbreak in West Africa last year. Evidence is now growing that, in taking over 25 years to take decisive action to minimise ACD, our governments have endangered the future survival of the vast majority of species on the planet (see biological and financial evidence below).
This is an avoidable tragedy. What our governments have lacked is a public mandate to act. I really hope this will soon emerge because, if it does not, evidence is growing that the sixth mass extinction of speies is already underway. See:
‘Has the Earth’s sixth mass extinction already arrived?’ (Nature, 471, 51–57, 3 March 2011).
That being the case, given the glacial pace at which progress has been made thus far, I think it is fair to say that humanity is rapidly running out of time to act. Furthermore, the problem is compunded by the fact that, under pressure from government-appointed scrutineers and/or sock-puppets of the fossil fuel industry, the UN/IPCC have consistently underestimated the costs of adapting to climate change. See:
‘Assessing the costs of adaptation to climate change’ (IIED, 2009).
This graph, as compiled by Dr Ed Hawkins (Reading University/Met Office), featured in an article by Damian Carrington, on the Guardian website yesterday, which highlighted the fact that:
2014 will be the warmest year in Central England for over 300 years (since records began)
(From where the above image has been copied.)
However, the article also highlights many other pertinent facts, such as:
— The whole world has had a warm year and global data, released later on Wednesday, is likely to indicate a new record.
— The likely record warmth in 2014 would end a period of relatively slow rises in global surface temperatures (which has been portrayed by climate sceptics as a halt in global warming).
— Greenhouse gases, however, continue to trap heat with over 90% of it being absorbed by the oceans.
In addition to all of this, it is worth noting that NASA has calculated that global average monthly temperatures have now been above their 20th Century average values in every month since 1985. There is, therefore, no longer any excuse (other than ideological blindness) for being sceptical about either climate change or the reality that what is now happening is primarily caused by the burning of fossil fuels.
Given the accelerating effect of all the positive feedback mechanisms we can now see (i.e. such as the melting of terrestrial ice and the release of methane from thawing permafrost), there is no longer any excuse (other than what Herman E. Daly called “growthmania”) for delaying the rapid phase-out of fossil fuel use in every context where this is now technologically possible.
In most contexts, humanity has alternatives to fossil fuels. What we seem to lack is an industrial elite willing to admit that burning all the Earth’s fossil fuels (simply because they are there) is likely to wipe out a significant proportion of all life on the planet (because climate change is now accelerating faster than many species can adapt to it).
Above all, now that historically-rare weather events of all kinds (i.e. hot, cold, wet and dry) are occurring every year, we need to stop talking about “natural climate variability” and start talking about “unnatural climate change” (and what we are all going to do about it before it is too late).
Is it too much to hope that our supposed world ‘leaders’, currently meeting at the UN’s COP20 summit in Peru, will actually stop listening to industrial propaganda (that there is no need for radical policy change); and start acting on the implications of the scientific consensus (that there is an urgent need for radical policy change)…?
… but this is no time for climate change scepticism!
For me, the last 12 months have been something of an emotional rollercoaster; and the ride has not yet come to an end. However, if I have any regrets about embarking upon research for a PhD, they are these:
1. I have lost the time and/or motivation to continue blogging.
2. I should have worked out how I was going to finance doing the research before starting it.
Neither self-employment nor paid employment has proven sufficient to cover my living costs and pay even part-time tuition fees. Therefore, having tried and failed to secure external funding, I have now had to suspend my registration as a student. Furthermore, unless I win the lottery, I am fairly certain I will have to withdraw my registration completely. I am also fairly certain I am not going to win the lottery. This is mainly because I do not play it!
But that is not why I am posting an item on my blog today. The reason for this post is merely to clear the way to post something more substantial tomorrow about the fact that:
2014 will be the warmest year in Central England for over 300 years (since records began)
(From where the above image has been copied.)
The Geoscientist is the Fellowship magazine of the Geological Society of London. With the Permission of the Editor of the magazine, I hereby republish extracts from three items in the most recent issue (cover image shown here) of the magazine:
There will, no doubt, be howls of protest from all the ‘climate ostriches’ within the Geological Society – those who dispute the problematic nature of the reality that:
(a) the Earth’s fossil fuel resources are non-renewable and finite;
(b) burning them is the primary cause of ongoing climate disruption; and
(c) feeding 10 billion humans will be very hard without fossil fuels.
Sadly, however, reality is not altered by our refusal to face it!
(1) The Only Way is Ethics (Opinion piece by Roger Dunshea*)
We all know geology is the most enjoyable of sciences, bringing together a differential of maths, a wave of physics, a whiff of chemistry and a gene of biology… Our science combines analytical techniques in the laboratory with equally important observation, sampling and experimentation in the field… We grapple with the fundamental structures of this planet, its minerals and history, and the enormous magnitude of time it has taken us to get to where we are now. As a group of scientists we are in a unique position to appreciate that this planet’s rock-based economic resources are essentially finite and that their replacement is either not possible or may take at least mega-millennia…
These resources have delivered abundant power and materials, resulting in outstanding increases in agricultural and industrial output, as well as some glinting adornments for the celebs. The average lifespan of Homo sapiens has been transformed and global numbers have increased at an astounding rate…
Geologists specialise in different areas of the science… Geology has made a major contribution to global society but do we risk threatening the prospects of future generations due to the current unsustainable levels of extraction? Should geologists start thinking more about helping the long term economic prospects of Homo sapiens?
So while our peers in the medical and life sciences are developing new ethical standards to protect the wellbeing of current and future generations, is it not now time to start discussing and developing a set of geological scientific ethics that can support very long-term global economic sustainability?
(*Roger Dunshea spent most of his career in the UK public sector in managerial and financial roles)
(2) Experimenting on a Small Planet (by William Hay)
This thick and well-illustrated volume is a highly readable tour through the multidisciplinary science behind Earth’s oceanographic and atmospheric warming and cooling on both geologic and anthropogenic timescales, by a major contributor with a phenomenal grasp of the whole… Many of these topics are neglected in mainline global-warming work, and professionals as well as outsiders will find much that is new to them…
The decreasing temperature gradient south from the Arctic has already made the northern jet stream slower, more frequently erratic, and much more likely to stall in place with the weather masses it controls. Extreme weather is steadily increasing as a result, and more and worse would be coming even if greenhouse gas emissions stop immediately (which of course will not happen). Predicting the specific great changes in oceanic and atmospheric circulations is confounded, however, because there has been no documented past occurrence of an icy Antarctic and an ice-free Arctic from which to reason by analogy, and north-south interconnectedness is uncertain, nor has there been anything comparable to our geologically instantaneous increase of greenhouse gasses to levels unknown for 35 million years.
Bill Hay has searched for explanations of the two major stable states of Phanerozoic climates, “greenhouse” and subordinate “icehouse”, and of the switches between them. He has focused on the Cretaceous and early Paleogene, when the poles were mild and temperate and deep oceans were warm, and the middle and late Cenozoic, when Antarctic continental ice and a mostly-frozen Arctic Ocean produced strikingly different regimes because the world’s oceans were dominated by polar-chilled deep water, and the atmosphere by great latitudinal temperature and pressure gradients, a regime that culminated in the waxing and waning continental ice sheets of the past two million years.
Changes due to even ‘present’ atmospheric CO2 levels would continue to develop for millennia before new quasi-equilibria were established. Mankind is facing catastrophe as a rapidly increasing population simultaneously outgrows its resources and enters a more hostile global environment.
(Review by Warren Hamilton)
(3) The Energy of Nations (by Jeremy Leggett)
Subtitled ‘Risk Blindness and the Road to Renaissance’, the risk that Leggett’s book draws to our attention is that because of the demands of nations for us collectively to cut back on the use of fossil fuels (so as to mitigate the effects of global warming caused by emissions of carbon dioxide) eventually the assets that oil companies have in the ground, and that form the basis for their share price, will become worthless because we shall have to stop using them…
“This risk goes completely unrecognised by all sectors of the financial chain” he says. If that realisation comes suddenly rather than slowly, it could “amount to another bubble bursting and a grave shock to the global financial system”. We are looking at what Leggett calls “unburnable carbon”.
Leggett’s argument also revolves around ‘peak oil’. Production has been running at about 82 million barrels/day, but the rise in demand by 2050 will be such that we will need 110 million Bpd. Yet all that industry has been able to do over the past few years is keep production flat in a time of extended oil prices. Where is all that extra production to come from?…
Leggett’s answer is to call for massive investment in what he calls the cleantech energy sources we shall need in the future. Currently we are saddled with a dysfunctional dinosaur and riddled with short-term thinking. The industry may be right to say there will always be gas, and oil, and coal. But the Stone Age didn’t stop because we ran out of stones. Endless growth is a problem on one planet with finite resources. So what can we do about it? We could all start by reading Leggett for ideas, that’s for sure.
(Review by Colin Summerhayes)
Copyright in all of the above remains with Geoscientist.
Must the World Bank now be added to the supposed list of environmentally-alarmist institutions seeking to use the perceived threat of climate change as a pretext for imposing global authoritarian government via the United Nations? This is essentially the position of all those that dispute the reality of the 97% scientific consensus – or the IPCC’s 95% confidence – that humans are the primary cause of the climate change we are now witnessing.
Unfortunately for such conspiracy theorists, the truth of the matter is much more unpleasant: Climate scientists are not engaged in a global conspiracy to provide the UN with an excuse to subvert the power of national governments. Conspiracy or not, it would be bad enough if our national governments had spent the last 25 years ignoring the warnings of climate scientists. However, the truth of the matter is even more insidious: The IPCC has spent the last 20 years or so compiling reports detailing the nature, scale and urgency of the problem we face, only to have our national governments systematically neuter their reports and ignore the warnings they contained.
Similarly, it seems, our national governments appear determined to ignore warnings from professional bodies, national scientific academies, and international organisations. Anyone who asserts that humanity needs to stop burning fossil fuels as fast as possible is, it seems, immediately dismissed as an environmental ‘alarmist’.
If you stop to think about it objectively, even for a moment, the reasons for this are very obvious: Far more serious even than the USA defaulting on its debt repayments, the problem is that the share prices of the World’s fossil fuel companies are entirely dependent upon the assumption that all the Earth’s fossil fuels will be burned. This is referred to as ‘business as usual’ (BAU).
Thus, in the minds of our politicians at least, if they accept the reality that we have a problem at all, the only solution to the problem is one that allows fossil fuel companies to continue with BAU.
Unfortunately for our politicians, fossil fuel companies, and all life on Earth (human and non-human), such a solution does not exist and is, almost certainly, technologically unachievable in the timescale that it would now be required.
The solution everyone is hoping will emerge is carbon capture and storage (CCS). This is a subject about which I have written a great deal; and I do not intend to repeat myself now other than to say this: CCS will only be able to help solve our problem when the rate of removal of CO2 from our atmosphere is greater than global emissions. Getting CCS to work will take decades (as will decarbonising our economies). It is quite possible that we do not have decades of time in which to do either but, one thing is for sure, it makes no sense to delay making a serious attempt to do either.
Therefore, I believe all would do well to ponder the question as to why the World Bank published ‘Inclusive Green Growth: The Pathway to Sustainable Development’ last year. There is a big clue given in the ‘Abstract‘, which reads as follows:
Economic development during the next two decades cannot mirror the previous two: poverty reduction remains urgent but growth and equity can be pursued without relying on policies and practices that foul the air, water, and land.
The World Bank accepts that humanity cannot go on treating the Earth with contempt; treating it as if both its resources and regenerative capacity are infinite. This is because, as is becoming increasingly obvious (in the case of the latter at least), they are not infinite.
This brings us to the crux of this post, which is to refute the entirely bogus argument that we humans have nothing to be afraid of because climate change is natural; life has survived it in the past; and will therefore do so again. There are at least two problems with this line of argument:
1. Because we were already in a warm interglacial period – and atmospheric CO2 is now 40% higher than at any time in the last 1 million years – it is highly unreasonable to dispute the fact that post-Industrial warming is unnatural (i.e. all sparrows may be birds but not all birds are sparrows).
2. In the entirety of Earth history, there have been 5 mass extinction events (i.e. periods when between 50 and 95% of all species have been wiped out). These events are each associated with periods when global average temperatures were more than 5 Celsius warmer than they are now (and there is strong evidence that a sixth mass extinction is already underway).
In responding to sensible comments on my previous post, ‘A summary of the ‘Climate Departure’ research of Mora et al.‘, I found myself referring to the most recent mass extinction event in the Earth’s history, the so-called Palaeocene-Eocene Thermal Maximum (PETM), which occurred 55 million years before present (MaBP). However, as the following video graphically demonstrates, what is now happening to the Earth’s climate as a result of the post-Industrial burning of fossil fuels, is looking increasingly like the Permian mass extinction event, which occurred 252 MaBP.
This video is only about 10 minutes long, so I hope people will watch it. If not, however, the main points are summarised below:
1. There have been five mass extinctions before and humans are now almost certainly causing a sixth.
2. The ongoing melting of terrestrial ice will now cause sea level to rise continuously for several centuries.
3. This is probably unstoppable but is survivable (i.e. assuming all humans can move away from coastal areas).
4. All past mass extinction events occurred when global average temperatures > 5 Celsius warmer than now.
5. Common to each event is further rapid warming triggered by methane release from permafrost and seabed.
6. We already have evidence that rates of both species extinction and methane release are now accelerating.
7. Positive feedback mechanisms (such as disappearing sea ice) will soon make methane release unstoppable.
8. If this ‘tipping point’ is passed, anthropogenic climate disruption will almost certainly be unsurvivable.
This is why the World Bank agrees that we need to decarbonise our global economies as fast as possible.