Future Harvests – The book is coming soon!

April 9, 2010

 

The editing of my book “Future Harvests – The next agricultural revolution” is about completed. All that is left to do is developing the cover and start the publishing.

I have already received orders, even before the book is out. That is quite a good sign. And a great surprise for me.

If you wish to be updated automatically when the book is published, just subscribe in the sidebar window on the right.

To describe the topics addressed, I have posted three short promotional videos on YouTube. In previous articles (The fun of writing this book and The next agricultural revolution), I had already given an idea about the content of the book.

Video #1: The Fundamentals (duration 2:37) – Introduction to the background and fundamental principles mentioned in the book “Future Harvests – The next agricultural revolution” to achieve food security for 9 billion people in 2050. Topics such as demographics, the shift in economic power, the control of food  and food security strategies are reviewed. Sustainability, innovation, efficient market driven food production and strong leadership are required.

or click here if video does not appear

Video #2: The Actions (duration 2:12) – A short review of some of the actions mentioned in the book to achieve the objectives. Solving the water challenge, finding new land for production, urban farming, hydroponics, farming the desert, rebuilding fisheries and developing aquaculture further are all possibilities.

or click here if video does not appear

Video #3: The Questions (duration 3:08) – A sample of some of the questions raised in the book. They cover technology, land deals in Africa, improving yields, restoring soil fertility, change in consumer needs, organic farming, risks of conflicts, biofuels or meat are some of the topics presented.

or click here if video does not appear

If you know someone who could be interested by the topics on this page, please pass it on!


The fun of writing this book

January 20, 2010

Over the last few months, I have been working quite a bit on writing this book about the future of agriculture.

I must say that compiling in one book a wide range of topics that, without any doubt, will be part of the future of our food production has been an exhilarating experience.

From demographics in full motion to the latest in technology, we can envision many different scenarios to set up the most efficient food production possible, as local farmers, industry NGOs and governments will need to find optimal solutions with the land, the water, the labor force and the capital available to them. Water and soil will be of vital importance, and their proper management is essential for the stability of many countries.

In the future, there will be no room left for wastage and inefficiencies, or we all will be punished if we get complacent. Similarly, we will need to change our thinking and accept that solving future problems will not be about transferring a one-fit-all model to very diverse situations. We might have had the illusion that it once worked, but it actually did not. We will learn from the mistake of the past to perform better. Sustainability is not an option; it is the only choice, because per definition what is not sustainable is doomed.

As food is a necessity, and since when we share between 9 billion people there is less left for each of us than when we shared between 4 billion, efficiency will be paramount. This will affect food prices and social stability. Technology is necessary but it is not the panacea in itself. The most needed resource for the future is strong visionary leadership to help us develop the plan for the next decades.

Let’s prepare ourselves for a deep change and we must accept the idea that we might have futuristic farms run by robots, satellites and computers in some regions as well as local urban gardeners in the heart of the cities, where 70% of the world population is expected to live. We will have small organic farmers and we will have large industrial farms using genetically engineered crops, but we also will have large highly efficient semi-organic farms that will combine the best of both worlds. We still will have specialized farms as well as mixed operations. Hydroponics and aquaponics will grow substantially in the future.

Today’s diet will be revisited and excesses will be out of place. Should we become vegetarians or do we simply need to eat less meat? Will aquaculture live up to the expectation and become the main source of animal protein? You will find out in the book.

Countries will have to think on how to guarantee food security to their populations. If it is not done well, this challenging task might end up in serious conflicts. Foreign and private investment in land and farming will continue in Asia and Africa. If managed properly, they will bring much prosperity to these regions, but if not managed properly, then we can fear the worst.

All these topics and many more will be presented in the book and I hope that it will help readers to understand all the variables that are at play, as well as it will help them get a more objective view of many controversial topics such as GMOs, nanotechnology or in-vitro meat. Once readers will have finished the book, they will be able to figure out whether and how we can feed 9 billion people. Thanks to examples from all over the world in as diverse countries as Uganda, Kenya, the USA, China, Indonesia, India, Brazil, Argentina, France, The Netherlands, Cuba, Kazakhstan and many more, we discover a myriad of different situations and solutions that illustrate human ingenuity to produce food.

However, for now just a few more months of patience as I need to get through the process of publishing.


Aquaculture: the solution to feed 9 billion people?

December 8, 2009

Last week, BioScience published an article based on the research of a group of researchers from the CSIC (Consejo Superior de Investigaciones Científicas), the Spanish High Council for Scientific Research.

They present their views on the potential of marine aquaculture to provide enough food for the growing world population. The authors of the report do not see fisheries as a significant option anymore, as the wild fish stocks are depleted, and the amount of time to replenish the stocks will be too long for fisheries to be able to meet the needs of the population. Aquaculture has gradually compensated the demand for fish that fisheries were not able to supply, and half of the seafood consumed today already originate from aquaculture. It is the fastest growing food supply activity and the projections for future growth are very strong. The researchers think that marine aquaculture could multiply its production by a factor 20 by 2050 and thus would play a major role in providing the world population with animal protein.

They bring up some interesting facts about agriculture and land animal farming. For instance, it takes 10 times more water per calorie to produce meat than it does to produce grains. Further, animal meat products represent only 3.5% of food production, but they consume 45% of the water used in agriculture. Considering demand for meat is expected to increase by 21% between 2005 and 2015, and will keep on increasing, this will only exacerbate this situation.

Another point that this group raises is the global nitrogen-use efficiency in animal productions. According to their sources, it is slightly more than 10% for land animals (5% for beef and 15% for pork), which makes their production a major source of nitrogen inputs to the environment. In contrast, marine animals have much greater nitrogen-use efficiency, at about 20% for shrimp and 30% for fish. Therefore, marine aquaculture culture releases two to three times less nitrogen to the environment than livestock production does.

From an environmental point of view, the idea of shifting the production of animal protein from the land where it uses scarce resources such as land and water, to the ocean where space and water are no limitations anymore sounds very sensible. From a nutritional point of view, replacing meat and dairy by seafood that is rich in healthy components such as omega-3 fatty acids is quite attractive, too.

They also notice that the land available for agriculture is shrinking, due to soil degradation and urbanism. Further, there is a growing scarcity of fresh water and increased competition for water as well. Therefore, activities on land do not offer the potential to grow all that much more food to feed the growing population. Even freshwater aquaculture faces these limitations. Freshwater aquaculture currently 57% of total aquaculture, therefore there is an untapped potential with marine aquaculture, as it does not use fresh water.

Of course, the main challenge to execute such a development of marine aquaculture production is to find the proper quality and quantity of feed. The researchers do not see the use of fishmeal and fish oil as an option anymore as they predict that the species used to make these products will not be able in sufficient quantities. Replacement by protein and oils from agriculture crops is an option for the short-term, but as aquaculture volumes would increase, the competition for these ingredients with meat production will make them too expensive, and for the reasons explained above, depending on land agriculture to feed marine species will face crop production limitations. Therefore, they prefer to envision a total new approach of aquaculture feeds, and recommend developing a new feed chain based on aquatic ingredients, such planktons, microalgae and seaweed. This approach makes sense, but the time lines to develop such a supply source and the cost of production of such an “aquatic” feed still need to be investigated. Several “seaweed farms” in production in China show interesting results and they seem to promise a strong potential of production for feed.

Another development that they expect is offshore aquaculture. Aquaculture operations located in coastal areas, although they are easier to access and generally in quieter waters, are very often located in zones where there are local issues to deal with, such as interaction with wild fish or recreational activities. Moving offshore can reduce these issues.

As you can see, developing the future of aquaculture is not simply a matter of growing fish in pens, but it requires a broader thinking that includes not only the oceans but agriculture on land, too. The future of food will require from us the ability to manage the whole planet!


Health and environment as growing drivers of food production

September 10, 2009

Health concerns will gain more importance in the future in the decision process of consumers when they buy their food.
More and more, we can hear and read about concerns and even rejection of the current production systems. Although this bad publicity is not always based on the most objective facts, it has been able to find a growing audience.

It must be true, it was in the newspaper

It must be true, it was in the newspaper

Since most consumers have little or no knowledge of agriculture and food, their only source of information is in the popular media. On the other side of the discussion, the agri-food industry is not getting through, because its message tends to be too defensive and too technical. Unfortunately for the industry, errors from the past (for example, the use of DDT) or cases from other industries (for example, tobacco) contribute to cast a shadow on its credibility. As I wrote my previous article “Less controversy thanks to transparency”, the agribusiness will achieve much more by opening up and having consumers visit their premises so that they can tell what they saw. They must organize more Open House days.

Therefore, for now, consumers have a certain perception of how food is produced, and it is not so relevant to argue whether this perception is correct or not. Perception simply is reality, and consumers act according to what they believe is true.
A little bit of this...There is a growing concern about environmental and health aspects of food production. About the environment, you can list very diverse things such as the depletion of wild fish stocks in the oceans, the interaction between aquaculture and wild fish stocks, manure and smell of intensive animal husbandry and impact of manure on soils and drinking water, deforestation of rainforest for ranching of beef or about growing GMOs (Genetically Modified Organisms). On the health side, consumers worry about food poisoning due to bacteria, such as E. Coli, listeria, campylobacter and salmonella, but also about residues of pesticides or antibiotics, as well as they worry about the use of hormones in animal productions. As the discussions get more animated in the US about the reform of health care and the cost of obesity, more and more people are wondering about whether the fast food diet is a proper one. Next to this, animal welfare is a growing concern by more and more consumers.
The answer to many of these worries has started to appear in the last few years with the growth of the organic market segment. When we see the growth and the performance of a retailer such as Whole Foods, there is no doubt that organic foods have a growing audience.

The concerns about the environment are forcing retailers, food service and businesses involved in the production chain of food to make changes. Some of the actions they have taken can be seen as marketing or PR, but they also have become mainstream. Just a look at how many restaurant and supermarket chains have already implemented sustainable seafood programs indicates how serious this change in consumer attitude is. Fast food chains are also actively working on reducing their environmental impact and set standards on where they source their meat, based on environmental concerns, such as no beef from ranches deforesting the Brazilian rainforest.
In the past, we have seen some examples of production methods that had to be abandoned, simply because no solution to cope with environmental problems could be found. This has been the case in The Netherlands where the level of intensification caused such manure surpluses and risks of animal disease to such a point that after many years of looking for viable technical solutions in vain, the government decided that the size of the national herds had to be reduced.
Similarly to what happened in Europe over the last decade, we can expect that much stricter rules in the use of antibiotics will be applied, and I expect a similar trend to a progressive elimination of the use of hormones in animal husbandry. About animal welfare, there should not be any surprise the day that only husbandry systems that allow enough “recreation” area for animals will be allowed. All of the above is going to have an impact on how and where food is produced. Systems will become less intensive, and progressively we will see more techniques to improve efficiency to compensate.

Past Food?

Past Food?

As I also had mentioned in another article (Future price of fish and meat: up), it is simple logic that with more people to feed, food is going to become more expensive. However, the relative prices of various food products also need to go along their relative health benefits. Today, it looks like only wealthy people can afford a healthy diet, as the price of “good” food is substantially higher than the price of what makes a nutritionally unbalanced meal. This clearly does not work in the direction of a healthier population at large.

The way consumers think will define the way we eat and produce our food. Many changes in consumption patterns, in production systems and in product offering are under way. I will get back later with more details on what my views are on this.

Copyright 2009 The Happy Future Group Consulting Ltd.


High-tech fish farm

August 31, 2009

Hawaii Oceanic Technology IncHere is an article from fis.com about another type of high tech fish farm with some nice futuristic design.

Hawaii Oceanic Technology Inc. has created the Oceansphere. “These elegant, self-sustaining and untethered semi-submerged floating pods are a revolution in open ocean aquaculture technology”, according to the fis.com article. The system is operated without the use of fossil fuels, which makes it environmentally quite acceptable.

As mentioned in the article, the company’s “plan is to demonstrate the feasibility of this technology and, as Jacques Cousteau said, farm the ocean as we farm the land.”


Ecosystem-based management approach gains importance

August 23, 2009

Here is an article from fis.com illustrating what I had written in previous articles in this blog (enter “ecosystem” in the search window to have the list of these articles) and mentioned in my presentation Twelve trends for the future of food production.
It also illustrate my claim that for environmental organizations and industry need time has come to co-operate.
After all, food production is a biological process and so are our lives, so that is no wonder that we need to look at this issue in its broad and complete scope.


The fish farming of the future?

August 21, 2009

Here is an article of the National Geographic about “Giant Robotic Cages to Roam Seas as Future Fish Farms?”

This article addresses a number of very interesting and valid points, such as the possibility to move to better farming environment, or getting farms closer to consumer markets.

Photograph Ocean Farm Technologies Having the ability to change location has several advantages. It allows finding areas where water quality is better as this varies with seasons and climate conditions. It also can allow farms to move away from the routes of wild fish and substantially reduce risks of disease and parasite contamination and spreading. Being closer to consumers market also has the advantage of reducing the amount of transportation and have the fish brought to market faster, therefore fresher, theoretically.

However, this article does not address a number of important aspects of fish farming. Going far offshore brings some organizational issues, such as rotating the crews working on farms, or dealing with rough weather. Probably some fine tuning would be needed to organize feed deliveries to such farms as well and the mobility must not happen at the expense of the life of equipment or the functioning of cameras and computers used for management purposes. As such, nothing that cannot be resolved, but it would come at a cost as well. Then it is to the farmers to weigh the pros and cons and make their decision.

Nonetheless, this is an interesting idea that shows that this industry is in full evolution and is adapting to the future.

Pioneering the oceans and robotizing aquaculture connects quite well with my previous articles “Innovation and tradition shape the future” and “The ocean, not Mars, is the next frontier


Rebuilding fisheries is a must for the future

August 5, 2009

Rebuilding fish stocks will be good for us allAs everyone knows, fish stocks have been depleted to levels that are not acceptable. This is the result of short-term thinking combined with highly efficient but stupid fishing methods. Not only fish is a high value food source, but oceans are complex ecosystems that we cannot afford to lose. Although aquaculture claims to be the way to compensate the supply of wild fish, this is only true within limits, as some aquaculture species are fed with fish meal and fish oil, and replacement of these products is also limited by the quantities that agricultural crops can supply, and consequently their price.

As one of the points that I mention in my presentation “Twelve trends for the future of food production” (under Presentations tab), we can expect that programs will be set up to rebuild wild fish stocks and bring the volumes back to levels with which sustainable fishing methods and quotas will help provide us with more secure supplies. This will be some sort of a stimulus plan for seafood with all stakeholders involved: government, fishermen, aquaculture industry, retailers, food service and consumers.

A recent report published by the Pew Charitable Trusts has reviewed the possibilities and the economic impact of rebuilding fisheries in the Mid-Atlantic Ocean, as well as the downside of doing nothing. A Canadian research has worked in a similar direction and tend to show that rebuilding fish populations is possible, citing a number of successful cases (see article).

All that comes out from these reports is that the situation, although quite serious, is far from lost, but it requires political will and organization to make it happen. This is exactly why all parties involved from whichever country concerned will have to act in a coordinated manner.

Copyright 2009 The Happy Future Group Consulting Ltd.


If we are what we eat, what will we eat in the future?

June 9, 2009

The past 50 years have seen, at least in the Western world, the development of the consumption society. The emphasis has been on consuming always more, by having an apparently unlimited quantity of increasingly cheaper consumption goods available. This trend happened in the agriculture and food sectors just as well, and followed a rather simple patter, actually. Mass consumption has been coupled to mass production, thanks to intensification, technical and technological progress and, last but not least, marketing.

Junk foodTechnical progress improved yields and productivity, while marketing was aimed at creating more, and new, needs. Our food has become standardized, industrialized, and processed in a wide variety of forms. As the emphasis moved to lifestyle and convenience, which came along with the rise of mass distribution, cheap energy and suburbia, we lost the connection between ourselves, the origin of our food and nature. Food became just things you buy at the supermarket, already packed in plastic and cardboard.

Now, we have come to the realization that this high production of waste, be it packaging material, be it blemished product that do not look good anymore while still perfectly edible, be it the overproduction of manure and its minerals, or be it the massive use of antibiotics and pesticides is not sustainable. Of course, much progress has already done to reduce this waste and there is a growing trend towards organic and traceable, but at this stage it not clear yet whether this is a true change in our behavior or whether it has more to do with a social status and marketing issue.

However, what the current situation might be, the fact that we understand that we cannot keep on intensifying and wasting the way we did, will inevitably bring a more fundamental change in how we consume in the future.

Some people predict such changes as the astronaut diet made out of pills, the use of a computer to tell us what and how much of it we should eat based on our activity level, or the tissue culture to replace meat, and many other scenarios. Will any of those ever happen? Who knows?

Personally, I believe that food as a very strong psychological connotation. We associate food with experiences and, although there are differences between cultures, that emotional bond will stay.

Clearly, the consumption society with all its excesses is coming to its end, and maybe the current economic crisis, which also originated in the excess of having it all at any cost, could very well be the turning point.

The next evolution is probably going to be a balanced approach between consumption, which we need to some extent, and the necessity of preserving what keeps us alive. There will be different graduations of this balance between geographic regions, but sustainability is the only way forward, as I mentioned in my previous article (Sustainability: as natural as balance).

Intensification is showing its limitations, waste of manure and of packaging are also hitting a wall, energy is getting more expensive and makes the production and the transport of food more expensive, too. This will reshape how we want to consume our food, how and where it is produced, how it is presented to us.

Cattle feedlotWe still are in a society where some people get obese by eating lots of food as quickly as they can, while they have less physical activity than the previous generations, thanks to automation. That food is produced on intensive farms and feedlots where the animals grow and fatten as quickly as possible, as they eat lots of food, while not having much physical activity. Similarly, in our society meat producers use hormones to boost growth and carcass quality, while body builders and sport professionals use steroids and growth hormone to boost their performance. Interesting similarities, don’t you think? We are indeed what we eat.

So, in a conservation society, should we expect the farms to be led by the need to preserve? This almost sounds like the farms we had at the beginning of the twentieth century. I think that there will be some of it, but the efficiency of production as well as the efficiency of preserving the environment will be much better, thanks to new technologies. We will have high yields, and at the same time, we will have highly efficient systems to use water, to recycle waste and preserve the fertility of our soils and the balance of our oceans.

Copyright 2009 The Happy Future Group Consulting Ltd.


The lessons of intensive animal husbandry to aquaculture

May 24, 2009

egyptian farmingThe domestication of animals for food production started thousands of years ago, and has gone through a slow evolution since then. In the last 50 years, we have intensified productions systems to a very high degree. Aquaculture, although not unusual in ancient times, has really experienced an economic boom only rather recently, and future growth predictions are quite optimistic.

The development of intensive animal husbandry has helped provide people with high nutritional value  products, and it also offered the possibilities to farmers to have a reasonable source of income. On the other side, it has brought a number of problems, many of which have not been solved and this has resulted in pressure to reduce the level of intensification.

chicken farmWith high densities of animal in some regions, animal husbandry has had to deal with a number of health issues, such as not long ago avian flu and swine fever. The presence of large number of animals in limited areas has increased the “disease pressure” on farms and regions, making epizooties quite devastating, considering the amount of culling that health prevention measures require. This always takes a heavy economic toll, and not only on farmers. This has forced many countries to review their policies about intensive animal husbandry and downsized the sector.

To prevent diseases and mortality, intensive animal husbandry has made a widespread use of antibiotics, which also appeared to promote animal growth. Unfortunately, over time it has appeared that these antibiotics found their way into our bodies and ultimately into our drinking water reserves. The main threat that has arisen from the massive use of antibiotics is the emergence of bacteria resistance to these antibiotics, with the potential risk of making them ineffective, should bacteria become resistant to all of them. The result of this would be to bring us back to the pre-penicillin era with all the consequences that we know. Many countries have now addressed the problems surrounding the use of antibiotics and restricted their use to curative purposes.

Another strong impact on the environment has been the manure surpluses in intensive regions. Next to the odor problem, the excessive manure production has resulted in heavy pollution of the soil and of water reserves. Phosphates and heavy metals coming from the animal feed endangered the fertility of the soil. More mobile minerals, such as nitrates, have entered our drinking water, making it in many areas unsuitable for pregnant women and infants. Sadly, the intensive regions get in trouble because of a surplus of minerals that originate from raw materials produced in other parts of the world, while on the farms producing the feedstuffs, the minerals are not brought back. They have to be replaced by chemical fertilizers instead of the manure that would originate from the animals, such as in a closed system mixed farm.

Husbandry systems have evolved, too. After years of high degree of confinement, regulations have changed and are still changing to take animal welfare more into account. As examples, I could give the stop on tethering of sows and hen cage ban. I have no doubt that animal welfare will become a growing issue in aquaculture, too.

The use of feed and its constant quest to reduce production costs has brought the industry to use some raw materials that can be questionable. An example of this was meat and bone meal use, after the mad cow disease hit Britain in the mid 1990’s. Next to the possible transmission risks to humans, it has also raised some questions about whether herbivores should consume meat derivates.

Intensive animal husbandry has made meat, dairy and poultry very affordable to most consumers, at least in the Western countries. This has led to a shift in the diet from mainly starch to a much higher proportion of protein and fat. Unfortunately, this shift has had some negative effect on health. Animal products are high value sources of protein and fat, but excessive consumption has negative effects. While an annual consumption of 30 kg of meat per capita would do just fine, most Western countries have passed the level of 100kg. Of course, there are many discussions between the different parties involved about where the truth lies, but there are good indication that a good diet should include more fiber, more produce and less animal protein and fat.

Fish farmTherefore, above, I have tried to sum up the most noticeable results of intensification of land animal production. Clearly, there are lessons to be learned for the “new” aquaculture industry, and by this, I mean the intensive, high investment aquaculture. Most companies involved in this business have been inspired mainly by the evolution-and the success- in the chicken industry. They try to copy and adapt a similar model. Therefore, it is rather predicable that they will have to deal eventually with similar consequences.

Fish farms have very high densities of animals. Even if the area at the sea level is rather limited, each farm goes quite deep, and the biomass they contain would make many chicken farms look like “small” operations. If you add to this that they are very exposed to the natural environment, as the pens are open nets, there is no wonder that they are very exposed to disease and disease spreading. The current situation in the Chilean salmon farming sector facing ISA just shows how sensitive these farms can be to diseases. My expectations is that aquaculture will be confronted to situations as bad as swine fever and avian flu, and they will have to revise their level of intensification, their location (including possible rotation of site with fallowing as a standard procedure). Further, navigation rules will be strengthened to reduce the possibility of cross-contamination from a marine zone to another.

Very likely, the sector will also further sharpen its veterinary procedures and increase their control on prevention and on medication.  About this part, it may seem that feces simply get flushed into the ocean, but that is not that certain. Feces always contain residues of medicines. The volume of feces produced is quite significant on such intensive fish farms and you can be sure that at some point, simply letting them go into the sea will not be allowed anymore. I foresee that fish pens will have feces collection systems in the future and the “manure” will have to find some use.

The feed industry is now diversifying it sources of raw materials to cope with the rising price of fish oil and fish meal, which is the result of higher demand from the fast growing aquaculture. They carry out lots of research to find the right profiles of oil to meet the fish flesh quality requirements (especially omega3) by using vegetal oil, but one can wonder whether this will be a sustainable approach in the long run. Maybe there will be a completely new industry to produce “farmed” fish oil and fish meal to meet the feed industry needs.

Copyright 2009 The Happy Future Group Consulting Ltd.


The Ocean, not Mars is the next frontier

May 19, 2009

Sorry to crush George W.’s and Star Trek’s fans’ illusions, but I believe that colonizing oceans could offer more interesting possibilities than outerspace. Mars… well that’s another story…
OK, so, let’s start daydreaming!
First, a look at the scenery.
Close to 70% of the Earth is covered by water.
Most of that volume is left unexploited, with exception of fisheries, which unfortunately deplete stocks, mostly because there is no efficient plan to manage fish stocks in a sustainable manner.
The timid colonization efforts are limited to fairly coastal activities.

Natural resources
While on the land, it has become more and more difficult to extract metals and minerals, there is a vast hardly explored potential for these natural resources lying at the bottom of the sea. Many open-sky mines have been exploited to almost full potential. Drilling and mining at deeper and deeper levels have resulted in higher and higher costs. All things considered, it is probably cheaper to drill through a layer of (soft) water than hard rock, and there are areas known where metals are available on the surface of the oceans bottom.

Energy
Tremendous energy potential is available in and over the oceans.We have huge reserves of hydrogen in there. Of course, to produce it we will have to produce the necessary energy to split the water molecules. Using fossil fuel cannot be an option, as the gas emissions would defeat the purpose.
The great thing is that the energy needed can be found in the oceans themselves. Why not think of having large wind or solar farms located on oceans (probably not too far offshore), dedicated to splitting water and producing hydrogen and oxygen. The hydrogen could be used in fuel cells, and the oxygen could be used to allow the people involved in underwater activities and settlements to breathe.
Further, more electricity can be produce by using the strong currents to run through turbines.
It could be also interesting to consider the possibility to create floating solar energy farms.
It such a scenario, it is not unthinkable that all our energy needs for cars, factories and industries could come from clean emission-free electricity.

Water
Water, and especially clean drinking water will be one of the biggest challenges that mankind is going to face in the future.
Of course, there is plenty of water in the oceans, but the main problem will be to make it drinkable.
Considering that in the fantasy I am writing here, I envision human settlements on (or in?) the oceans, there will have to be drinking water available.
Next to desalinization, the other most obvious source of drinking water is collecting rain.

Capturing carbon
There are projects of using minerals to change the pH of the sea with the hope that this would help absorb CO2 much faster than it naturally currently happens. Although, this might be our last resort if we do not get our emission under control. The problem is that we have about no idea on what the side effects on the ecosystems might be, and that is a scary thought.
Here, I want to focus on more positive ways to use ecological methods.
On the land, we are losing more and more trees as a result of our need for more and more land, and therefore we are losing the natural capacity to capture CO2.
Then why not think of replacing these lost trees by cultivating the oceans and develop large vegetal populations, in other words, grow aquatic meadows and forests?
This must be done with care of course as the ocean life is a three dimensional thing with depth playing a significant role, while on land it looks more like two dimensional (limited depth/height significance).
Another area of attention when developing such vegetal populations is to make sure they do not get out of control and impact the oceans ecology as many other species with interact with them, creating complete ecological systems and food chains.

Developing a whole new aquaculture
Here, I use this term in its literary meaning, which is cultivating the water, not just restricting it to the production of a few commercial aquatic species, as it is the case today.We should be able to cultivate the water en develop it in a similar way as we did with agriculture, but also by learning from the mistakes we have made in agriculture.The only way that the current aquaculture farms can survive is to produce (cultivate) the foodstuffs it needs in the oceans as well. Keeping on doing as today has probably not that much future, as the need for fish meal, and mostly fish oil will exceed by far the current production possibilities, and exhausting the wild stocks used for that clearly could not work. Further, replacing these foodstuffs by vegetal protein and fat from agricultural crops will not work, either, because there will be too much competition from the needs for land-based animal productions and the needs for human food. Clearly, the only way to meet the increasing needs for seafood is to grow the foodstuff in the sea.
This opens a tremendous project of picking which foodstuffs to produce in the sea, how to manage them, how to combine the mix of production and ensuring the sustainability of this new aquaculture, and at the same time ensuring that the marine ecosystems recover and function properly as well.
This will require an aquaculture of plankton, of algae, of aquatic plants, of fish, of shellfish, of mammals en maybe more.
So far we have depleted the food chains in the sea, now is the time to restore them, next to increasing our ocean-based food supplies.

The challenges
Well, you will say: that sounds all very nice but is it realistic?
And I would answer, maybe it is not quite realistic today, but if we work on it, quite a few things named above can be achieved. Actually, some have already started.
The main challenge I see is to cope with the tremendous forces that oceans can unleash, such as currents, storms, waves and pressure in the depths; and we would need to build in a way that can deal with such forces, if we want to avoid disasters.
But you have to agree that there is lots of space available on our planet this way and it here right here “at home”.

Copyright 2009 The Happy Future Group Consulting Ltd.