Showing posts with label adaptation. Show all posts
Showing posts with label adaptation. Show all posts

Friday, 5 February 2016

Malcolm Turnbull, how should Australia adapt to climate change without science?

Adapting to climate change needs information on local changes in the mean, weather variability and extremes. Observed changes in the means are not enough.



If you don't like what #climate science is telling you, just fire all the climate scientists
Miles Grant

The "conservative" government of Australia plans to gut its climate research and kill the groups doing climate research at Australia's main research institute, CSIRO. Australia's opposition leader rightly said the Prime Minister Malcolm Turnbull should "hang his head in shame".

The destruction is not for lack of quality of the research. CSIRO's new chief Larry Marshall send an email to its employees stating:
"CSIRO pioneered climate research ... Our climate models are among the best in the world and our measurements honed those models to prove global climate change.
From this the strange conclusion is drawn:
That question has been answered, and the new question is what do we do about it, and how can we find solutions for the climate we will be living with?"
[UPDATE. Judith Curry agrees with this strange sentiment: "Now that the UN’s community of nations has accepted consensus climate science to drive international energy and carbon policy, what is the point of heavy government funding of climate research, particularly global ­climate modelling?"]

Just because we know climate change is real, does not mean that we understand everything. Projecting increases in the global mean temperature is easy. Saying something about the changes in the hydrological cycle is much harder. We know how much the global mean precipitation will increase because we can estimate the additional evaporation and what goes up must go down, but say where and how it goes down is hard. These assessments naturally have their uncertainties and it certainly pays to reduce them to make better political decisions.

Much more important than the uncertainties in the changes in the global means, for "solutions for the climate we will be living with" (adapting to climate change) we will need local predictions. That is a lot harder and very uncertain. Locally the changes can be very different from the global change. As Roger Pielke Jr. writes about storms on the US East Coast: "So those who argue for a simple relationship between increasing water content of the atmosphere and storm strength, data do not support such a claim over this multi-decadal period, in this region." (my emphasis)

open flames and smoke in a rural Texas landscape

Much more important than the uncertainties in the changes in the global means, for adaptation we need information on changes in weather variability and extremes. Especially for a country like Australia that knows very large variations due, for example, to El Nino.

One of the strategies of the mitigation skeptics is to pretend that adaptation is straightforward and cheap. When the sea level goes up 1 mm, just make the dikes 1 mm higher. However, the sea dikes will break during spring tide and a strong storm. Thus we also need to understand the storms to know how much stronger the dikes need to be. They will break during a once in a century storm. Or at least during what used to be a once in a century storm. Try to estimate from observations during a changing climate whether the 100-year storms are getting worse.


"With climate change, we can’t drive by looking in the rear view mirror. We’re in a new normal."
Climate scientists Berrien Moore and Katharine Hayhoe


Was the flooding of New Orleans due to [[Hurricane Katrina]] a unique event or the "new normal"? During the flooding last year in South Carolina in some locations the rain amounted to a 1,000-year event (in a given year there is a 1 in 1,000 chance of observing rainfall of that magnitude of more). Does South Carolina have to adapt to this because this will happen more often or will this remain an outlier? Parts of the United Kingdom were hit three times by 100 year rain events the last few years. How often will they have to suffer this before we know from waiting and seeing that the weather has changed, people will have to move and the infrastructure needs to be more more robust?


"There's no point putting in flood defenses that respond to mean climate change if you haven't thought of what a one-in-a-hundred-year event will look like in a warmer world... They don't want to know what the climate will be like, they want to know what the weather will be like in 20, 30, 50 years time."


The same goes less visibly for droughts. When your farm takes a hit due to a drought, do you build it up again when the rain comes back or is your land no longer profitable. Do you want to do this blindly? Or do you prefer some scientific guidance? For planning crops and managing reservoirs during droughts, seasonal and decadal climate predictions reduce costs and hardship. For planning new reservoirs and desalination plants long-term climate projects give guidance.

Meteorologists and climatologists are building seamless prediction systems. Going from short term weather predictions and nowcasting using observations during severe weather, to long-term weather predictions to prepare for bad weather, to seasonal and decadal predictions for planning and climate projections for adaptation. In many wealthy countries governments are setting up national climate service centers to help their societies adapt. The World Meteorological Organization is building a Global Framework for Climate Services (GFCS) to coordinate such efforts and help poorer countries understand the changes their region will see. While Australia sticks its head in the sand.

We will need very good science, a very good understanding of the coming climatic changes to adapt. The Australian government destroys climatology at a moment people, communities and companies need it most to adapt to the climatic changes that we have set in motion. This is about as stupid as the US states where the civil servants are no longer allowed to talk about climate change, which will mean that these communities will suffer the consequences without being prepared for the changes.

The same is true for (nearly?) every impact of climate change. In the past we could use long-term observations to determine what kind of extremes we could expect. Now, after all the delays to solve the problem, humanity is becoming more and more dependent on climate science and climate models, the models the mitigation skeptics who campaign for more global warming claim not to trust.

If you do not know which climatic changes you need to adapt to, you need to adapt to everything. Preparing for the worst case scenario in every direction is very expensive.


Never attribute to maladaptation that which can be adequately explained by stupidity.


When Australia notices what a blunder they are making it will easily take over a decade until Australia's climate research is again where it started. It takes years until you understand a climate model or a data set well and start to be productive. Science is a social profession and once you are proficient you can start building your network. Then you notice the kinds of expertise still missing in your freshly build up institute. Unfortunately, like trust losing scientific expertise goes much faster than building it up.






Related reading

CSIRO boss’s failed logic over climate science could waste billions in taxes by Andy Pitman, Director of the Centre for Climate System Science.

The CSIRO and farming in a changing climate

'Misleading, inaccurate and in breach of Paris': CSIRO scientist criticises cuts. Stefan Rahmstorf​: "Closing down climate research capacity at a time of rapid global warming is not just short-sighted, it borders on the insane."

The Sydney Morning Herald: Climate science to be gutted as CSIRO swings jobs axe

Australia's CSIRO dims the lights on climate and environment

Thomas Peterson chair of WMO Commission on Climate explains the need for climate research by example how to deal with a drought.


Top photo. Severe suburban flooding in New Orleans, USA. Aftermath of Hurricane Katrina. Photo by ark Moran, NOAA Corps, NMAO/AOC (CC BY 2.0)
Second photo. Flames burn out of control at Possum Kingdom Lake near Pickwick, TX, on April 15, 2011. Photo by Texas Military Forces, available through a CC license.
Last photo. Flash flooding stalls traffic on I-45 in Houston on May 26, 2015. Photo by Bill Shirley, available through a CC license.

Sunday, 3 May 2015

Gavin Schmidt, welcome to Hamburg



Neglecting to monitor the harm done to nature and the environmental impact of our decisions is only the most striking sign of a disregard for the message contained in the structures of nature itself.
Pope Francis


Bad Astronomer is mad:
A passel of anti-science global warming denying GOP [USA Republican party] representatives have put together a funding authorization bill for NASA that at best cuts more than $300 million from the agency’s current Earth science budget. At worst? More than $500 million. ... The authorization bill passed along party lines (19 Republicans to 15 Democrats).
Bad Astronomer also reported that last year the Republicans shifted the climate research funding for NOAA towards weather prediction.

John Timmer of Ars Technica adds:
The bill comes a week after the same committee reauthorized the America COMPETES act, which includes funding for the National Science Foundation and Department of Energy. As at NASA, geoscience funding takes a hit, down 12 percent at the NSF, with environmental research from the DOE taking a 10 percent hit.

There seems to be a pattern.

One wonders if they know what they are doing.

I would personally interpret a reduction in the budget for climate research as claiming: the science is settled. If these Republicans were sceptical about climate science, they would want to fund research to find the reason for the misunderstanding. The consensus of 97% of climate scientists, myself included, that global warming is happening, is caused by us and will continue if we do not do something, will not go away by itself. That will require research, arguments, evidence. In this light it would make sense when Democrats would shift science funding from climate research to climate solution, but they may realise that there are more considerations.

It also goes against the motto of the mitigation sceptics that we should help ourselves and adapt to climate change, rather than to reduce greenhouse gas emissions. Because then we should know what to adapt to.

When it comes to the relationship between greenhouse gasses and global mean temperature, our understanding of climate change is pretty solid. Not perfect, science never is, but pretty solid. For adaptation, however, you need local information; global means are not enough. That is a lot harder, that requires that all the changes in the circulation of the oceans and the atmosphere are rightly predicted. It likely depends on aerosol concentrations (small atmospheric particles), on changes in the vegetation, water tables, sea ice.

Many impacts of climate change will be due to severe and extreme weather. Sea level rise, for example, endangers low lying regions, but the sea dikes will breach on a stormy day, thus you also need to know how storms change. Thus for adaptation you do not only need to know the annual or decadal average temperature, you need to know the changes in atmospheric events that happen on short time scales. From minutes to days for severe weather, from weeks to months for heat waves and droughts. This is hard for the same reasons why predicting local changes is hard.

It is not enough to know what happens to temperature, while especially precipitation and storms are very hard to predict accurately. They are, however, very important for agriculture, infrastructure, flood prevention, dikes, and landslides. When it comes to infrastructure or long term private investments, we would need to know such changes decades in advance. Alternatively, you could "adapt" to any possible change, but that is very expensive.

This is the kind of detail we need to prepare our communities to adapt to climate change. This is hard and very much ongoing research. If you are taking the bet that adaptation is enough, it does not seem wise to leave the American public unprepared.

Earth observation is also much more than climate. The same satellites, the same understanding of these measurements and deriving information products from them are used in meteorology. One of the main reason why casualties due to severe weather are decreasing is because of good weather predictions, we see the bad weather coming and can respond in time. Good weather predictions start with a good description of the state of the atmosphere at the start of the weather prediction (called [[data assimilation]]). More computer power, better models, better assimilation methods and detailed global Earth observations are responsible for the improved modern weather predictions. My guess would be that the better observations are easily responsible for half of the improvements. While I work on ground-based measurements, I must admit that for accurate weather predictions beyond one or two days the global overview of satellites is essential.

Other applications of Earth observations:
- assisting wildfire managers in wildfire recovery
- supplying farmers with knowledge about when to grow which crops and where
- drought/famine prediction
- the effects of deforestation and natural disasters (such as landslides, earthquakes, hurricanes, etc.) on local communities and surrounding ecosystems
Earth observation is also important to organize the rescue work after catastrophes. Think Hurricane Katrina.



The funding reductions also give the impression that climatologists are punished for their politically inconvenient message. Maybe these Republicans think that they can influence the state of the science by beating scientists in submission. This will not work. Science is not organised like a think tank, which are there to write any bunk that the big boss wants written.

Science is a free market of ideas. Like the free market uses distributed information on how to efficiently organize an economy, science is highly distributed and cannot be controlled from the top. Every researcher is a small entrepreneur, trying to search for problems that are interesting and solvable. Science is organised in small groups. If your group does not function, you'd better get out before your reputation and publication record suffer. Multiple such groups are at one university or research institute. In one country you will find many universities and institutes. All these groups in many countries are all competing and collaborating with each other. Competing for the best ideas, because it is fun and get more possibilities to do research. The currency is reputation.

Your articles are peer reviewed by several anonymous colleagues selected by a journal editor, research proposals are reviewed by several senior anonymous colleagues selected by the funding agency, the university groups and institutes are regularly reviewed by groups of senior scientists. You are competing to be able to collaborate with better groups. This web of competitive and collaborative relations is designed to get the best ideas to float up and to make it hard to apply pressure top down. Add to this researchers who are fiercely independent, intrinsically motivated and do science because they want to challenge themselves, understand the world and measure themselves with the best. At least the majority of people starting with research is intrinsically motivated. The climate "debate" gives the impression that for some the joy of science fades with age.

Even if it would be better for American scientists to shut up and spread Republican propaganda, no one could enforce that, while there are strong enforcement mechanisms for the quality of science. I am sure that most American scientists that would be pressured by the Republicans would still stick to the truth. You get into science because you want to understand reality. Scientists accept low pay and bad labour conditions to do so. If they are no longer allowed to tell the truth, I would expect most scientists to move to another group, to another country or simply to stop.



Punishing scientists for their inconvenient message also send a bad signal to the world. A country with a government meddling in the results of scientific research is not attractive. A large part of the scientists in America come from abroad. New high potentials may now think twice before they go to America.

Researchers may go to my birth country (The Netherlands) or home country (Germany)instead. They have freedom of science and research in their constitutions. In both countries you only need English to do your work and nowadays you can also get by in daily life with English (although I would still advice to learn the local language for better social integration). For Germany I know that we are always looking for good scientists. Too little students start studying meteorology to fill the vacancies. They even took me as a physicist because they could not get any better.

In the 17th century, when in most of Europe's rulers did not tolerate deviating thoughts, The Netherlands was a haven of tolerance and experienced a golden century. This little country attracted an enormous influx of the best scholars, scientists and artists from all over Europe, introduced many free market innovations, became a world power. Before and during the Second World War many Jewish and German scientists migrated to America because of the repression in Europe. This has kick started American science. The repression of scientific freedom has real economic and cultural consequences.

One wonders if they know what they are doing. The GOP representative, that is. They almost unanimously have trouble accepting that we are responsible to (almost) all the warming seen in the last century. The normal Republicans (except for the Tea Party) fit into the American mainstream when it comes to accepting that climate change is real. The very vocal mitigation sceptics on the net that give America a bad name abroad only represent a few percent of the population. One wonders when these normal people tell their politicians to get their act together.

In the realm of climate research, my guess would be that Europe is already a little stronger than the USA. The aggressive mitigation sceptics to do not make America more attractive. The FOIA harassment in response to inconvenient science does not make America more attractive. When the political radicals are determined to hurt American interests and pass this bill, I would like to invite Gavin Schmidt to Germany. In am sure the Max Planck Institute in Hamburg would be interested. The Max Planck Foundation was specially founded to attract the best researchers from all over the world by providing them with a lot of freedom of research. After all, top researchers know best what is important for science. Gavin welcome to Hamburg, your [[ICE]] is waiting.





Related reading

Phil Plait (Bad Astronomy blog): House GOP Wants to Eviscerate NASA Earth Sciences in New Budget

Elizabeth Kolbert in The New Yorker: The G.O.P.’s War on Science Gets Worse. "Ignoring a problem does often make it more difficult to solve. And that, you have to assume, in a perverse way, is the goal here."

Discover: House GOP to Humanity on Global Warming: Put on This Blindfold and Keep Marching

John Timmer of Ars Technica: House Science Committee guts NASA Earth sciences budget

Stop all harassment of all scientists now

Peer review helps fringe ideas gain credibility

The value of peer review for science and the press

The Tea Party consensus on man-made global warming

Do dissenters like climate change?

Climate myths translated into econ talk



* Photo at the top of Alster by André H. (An der Alster) [CC BY 2.0], via Wikimedia Commons
* Photo of St. Pauli by Heidas is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
* Photo of Altonaer Balkon in Hamburg by Udo Herzog (http://flickr.com/photos/udo/142872336/) [CC BY 2.0], via Wikimedia Commons
* Photo of Jenisch by Wolfram Gothe (Transferred from de.wikipedia) [Public domain], from Wikimedia Commons
* Photo of the main station of Hamburg by Thomas Fries / Lizenz: CC-BY-SA-3.0