Tuesday, 4 December 2018

TRUE SUSTAINABILITY


Holistic Approach in Understanding 
TRUE SUSTAINABILITY

-Dr. Ajit Sabnis

Preamble:
Sustainability, Sustainable Development, Sustainable Society, Eco-friendly communities, Global warming, Climate change etc. are the modern day buzz words and are being very commonly used by one and all. Professionals also coin new and attractive phrases like: Smart and Sustainable Societies, High performing Societies, Eco-spirituality and so on. In most cases, the understanding of true sustainability has a very limited bandwidth.

Till the beginning of 18th century all looked OK. Sustainability aspect never bothered us. Most of the natural resources, most of the environment had remained un-altered. It is then the period of Industrial revolution emerged on the global scenario and western countries started to establish their supremacy in terms of infrastructure development, better life style their citizens, more and more comforts to their citizens etc. And in the bargain, they started using the natural resources provided to them by the nature. This suit followed by other countries by the time we reached mid nineteenth century. Present developed countries were then the Developing countries. They were probably smart and cautious enough to reserve most of their natural resources and started importing these resources from third world countries. Third world countries accepted this change whole heartedly as they also aspired for infrastructure development in their economies in proportion to their population. It has continued even today and those developing nations have now attained status of Developed Nations.

The Complexity:

Sustainability as a phenomenon is very complex and no one can actually claim to have understood it in its entirety. It is considered as one of the Big Questions by the scientific community.

The Definition:

Sustainability in general is as an ability to sustain as per most dictionaries. This aspect of sustainability has different definitions in different contexts. For example, in the context of forestry, sustainable development can mean the harvesting of trees and other forest products at a rate that does not exceed the capacity of the forest to regenerate itself. In the context of urban planning, sustainable development can mean managing growth within the capacity of infrastructure to service the population and so on. As per Dr. Abdul Kalam, Sustainability is the line between Need and Greed. As per United Nations, Sustainable development is the development that meets the needs of our generation without compromising the needs of future generations. As per one of the recent studies, True Sustainability is establishing harmony with the Nature and the Environment it provides.

India’s Position:

After agriculture and industrial revolutions, India focused on its infrastructure development and still we are a developing economy in the world and this is mainly due to uncontrolled population growth. On one hand, we have always struggled to reconcile with the Demand and Supply chain and on the other, global geographical boundaries are shrinking and the global community is becoming one in experiencing various impacts of human greed. This phenomenon is referred as ‘Anthropogenic’. Developed nations, which are actually responsible for all the environmental chaos hitherto, are putting pressure on developing nations to exercise control on their growth patterns. In the process of aping the West, we have forgotten our ancient wisdom, sustainable practices and now looking for Sustainable Solutions from them and that is the irony.

Info Box: As of today, global greenhouse gasses emitted together by USA, China and European countries put together amounts to whopping 56 % and that by India alone is only 6.5 %. However, we are fourth in the list. Average per capita power consumption is highest in the US while India it is the least. All said and done, today, the detrimental impact due to human greed is affecting our Planet.

Why the Big Concern!

In the name of materialistic development, especially since the beginning of 19th century, we have brought the Planet Earth to the brink of disaster. It is an established fact that whenever a new and better species have appeared on earth, there has been a major disaster or chaos. What exactly is the IMPACT we are all talking about! Why the whole world is now so concerned about it!

The Impact:

The impact phenomenon that we are talking about is the detrimental impact human beings are casting on the Natural Environment. This can be understood by looking at the three important challenges we are head-on with;

1] Global warming- Where the average global temperature is increasing very rapidly due to human activities. This is due to emission and accumulation of greenhouse gasses into the atmosphere. This has several detrimental impacts.

2] Climate Change – Due to long term effects of several factors impacting season change, health, change in migratory patterns, ocean acidity, acid rains etc. Also, resulting in a phenomenon called Polar Amplification, where the ice caps are melted exposing the underlying rocks which in turn, absorb and reflect more heat.

3] Natural Resource depletion- Unscrupulous use of natural resources provided to us by nature. We continue to drain our natural resources with no sign of relenting.

Conventional Sustainable Society:

Till recently, establishing a sustainable society called for integrating three fundamental spheres of a society namely, The Social, the Cultural and the Economic. As the concern about the deteriorating environment became an issue of criticality, the fourth sphere called- The Environment was added. This too was inadequate in understanding the true meaning of sustainability. Unless and otherwise, an individual willfully and ethically participates in achieving the SUSTAINABILITY DEVELOPMENT GOALS, establishing a sustainable society is not possible. Hence the fifth sphere of ethics (Spiritual) was included. 

Science-Spirituality Convergence:



If we see these five spheres, they represent nothing but the Physical, Vital, Mental, Spiritual and the Psychic development of a society as described by Sri Aurobindo. Only when this integration of 5 spheres happen harmoniously, true sustainable society can emerge and manifest.  In a way, Science and Spirituality are converging. We see 20th and 21st century to complement this view. Sri Aurobindo and Einstein, both of them extensively delved on the same subject of Matter and Energy, almost simultaneously. While one established matter as the foundation for in the Evolutionary process, the other established a relation between matter and energy. The advent of quantum physics, efforts of several physicists leaning towards the philosophy of Shankara to answer some of the Big questions, stand as testimony of this convergence. Even Stephen Hawking, in his latest book, released after his death, talks about the possibility of a super human on earth. For him, superhuman is a human being who is capable of self-designing his DNA structure and the truth is, we are moving towards this formidable achievement. It is Impossible to judge the logic of the infinite with the logic of the finite. Interestingly, though Stephen hawking is an atheist, he observed about Einstein’s work-“the key element of Einstein’s scientific career lies in his ability to convert his intuitive imagination into experiments applying the laws of physics”.

Identification with the Nature, the Only Way Forward:

In the process of creating a sustainable society and sustainable living, we have consistently ignored the one fundamental aspect which could make this possible: Our identification with the nature, to become one with the nature. Forget the timetables, technologies, and transfers of money from developed nations to developing nations; living in a sustainable way is only possible if we and especially our leaders more deeply understand the very fabric of Nature.
In reality, Spirituality and Sustainability go hand in hand; one cannot proceed without the other. In fact, sustainability is an Attitude, the way of life. A spiritual person cares deeply about people, animals, plants, the oceans and the entire planet. A spiritual person knows that, we are all One. A spiritual person has kindness, compassion, humility as his or her guiding principle and naturally leads a life of sustainable living. Conversely, living in a conscious, sustainable manner promotes spiritual growth. Thus, spiritual evolution makes sustainable living, an essential way of life. Spiritual practice soon reveals the truth that I am a part of the Whole. If I fail to preserve the latter I fail to preserve myself.

The Indian Concept of Sustainability:

Concept of Sustainability is not new to India. Since time immemorial, Indians have lived respecting the nature. The essence of Indian philosophy itself is founded on the very concept of oneness- Prakruthi and Purusha, being the two facets of the same Absolute. We have always revered our planet earth as our Mother– ‘Maata bhumihi, putroham pruthivya’- Many of us, as we get up in the morning, repeat, ‘Samudra vasane devi, Parvatsya Stana mandale, Vishnu patni namastubhayahm, Padasparsham Kshmaswame’- O! Mother Earth, Pardon me as I touch you with my feet. ‘Sarve Janaha Sukhino Bhavantu’ – prays for the wellness of every speck of dust, chara and achara. We even revered our waters. We invited sacred waters of seven rivers while bathing- ‘Gangech, Yamunechiva, Godavari, Sarswati, Narmada Sindhu Kaveri, Jalesmin sannidhim kuru’

But then, what happened? How and where have we lost these exemplary and resplendent vales? As Sri Aurobindo puts it, every society has to pass through different stages in the evolutionary process. The Symbolic age, the typal, the conventional, the individualistic, the age of objectivism, the age of subjectivism and then followed by Spiritualised Society. We are all in the age of Objectivism. Reason, Logic and half-truth-mental perceptions dominate our being. We need to rise above from this stage of objectivism by satisfying it before entering into subsequent stages. Let us now look at the other facet.

When we talk about ‘Sarvam Khalu idam bramh’, the essence of true sustainability is encrypted in the entire universe. To me the entire universe created by the creator is sustainable. Look at the various constants of Nature! How sustainable they are since billions of years!  Sri Aurobindo’s Integral Yoga, the Poorna Yoga, is also called by some as Integral Adavatism of Sri Aurobindo. The triple transformation formula given by Sri Aurobindo, Psychisisation- to look within and make our Self as the guiding force; Spiritualisation-to find All in One and One in All; Supramentalisation-to realize the supramental truth; describes our journey from one state of consciousness to a higher state of consciousness, encrypting our journey towards the realms of higher perfection, and the interconnectedness. Sustainable living is then, just a byproduct of our spiritual journey in the Evolutionary Process. 

Conclusion:


There is no inherent disorder or evil in the universe. Such evil and disorder comes into creation through our ignorance. Present environmental crisis is one of such things. True Sustainable Development calls for conservation and preservation of natural resources and of the environment. This requires a paradigm shift from our present ordinary self-gain mind set to a sustainable mindset. True sustainability is probably the first step towards establishing a spiritualised society, and that is our aim too.

Let us work towards it individually and collectively. The time has come to find reconciliation between all subjects and anti-subjects. As Sri Aurobindo puts it, even by negation, we arrive at the same realization.
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Monday, 8 October 2018

CONSTRUCTION MATERIALS AND ENVIRONMENT





      Built Environment has massive impact on Natural Environment. Construction process and construction materials are major contributing factors. Construction materials interact with Embedded Energies Footprint resulting in Global Warming. The interaction between these three elements namely, construction materials, embedded energies footprint and global warming is a complex phenomenon and needs to be understood with clarity while arriving at a conclusion in assessing the exact nature of impact on natural environment. Currently the built environment is a huge consumer of depletable energy resources and is altering the planet’s environment in an irreversible way. Over the span of a building’s life the operational energy rather than the embodied energy of a building is the largest energy consumer.

     Assessment of the impact of built environment on natural environment demands systematic analysis. Different types of Infrastructures like Residential and commercial buildings, transportation, roads, bridges, utilities, ports, and railways, private and public construction are essential due to urbanization and include every input and output of the life-cycle stages of the built environment namely; i) raw materials acquisition and processing, ii) manufacturing, iii) construction, iv) operation, v) maintenance, and vi) end-of-life option. However, the construction industry must not only comply with the ever-growing number of environmental legislations but go beyond compliance, proactively internalizing environmental performance in a way similar to that of other industries keeping Sustainable future as the goal.

     Studies have shown that building construction with its four phases including Pre Construction, Construction, Operative, maintenance and Recycling phase is energy centric. With rapid urbanization and improved social status there is an increasing trend to consume more energy per capita. This is also reflected in modern construction trends and changing sky lines giving rise to new generation construction materials. Estimates show that about 80 percent of energy gets consumed during the operative and maintenance phase and remaining will get consumed in other phases like construction, demolition, heating, ventilation and Air conditioning phases.

     In developing countries like India, infrastructural growth in general and construction industry in specific, demands considerable amount of energy. Recent survey shows industries alone consume about 45% of the total energy generated. Reduction of energy demand during construction phase is mainly due to embodied energy of construction materials. Due to extreme complexity involved in arriving at the exact quantification of energy consumed during the construction phase, reduction strategies are also complex. The entire process in the Life Cycle of a building gives rise to complex interaction phenomena between the Construction Materials, Embodied Energy footprint and Global warming.

     To resolve this complexity there is a need to control and prudently use natural resources to shrink the carbon foot print. Meticulous planning of growth and proper understanding of interactions between the three attributes stated above play a vital role for societal sustainability.

Dr. Ajit Sabnis

Image source:
www.indiacelebrating.com/environmental-issues/natural-resources-depletion/

Monday, 1 October 2018


WHAT CIVIL ENGINEERS SHOULD KNOW ABOUT CLIMATE CHANGE

- Dr. Ajit Sabnis

Impact of Urbanisation
Civil Engineers play a vital role in country’s economic development and they participate by way of conceptualizing a project, planning a project, estimation, prepare specifications and bill of quantities, designing, construction, monitoring, quality assurance, material selection, repairs and retrofitting and decommissioning. In a nutshell, they get involved in all the four stages of life cycle of a building.

Construction industry is extremely energy intensive and consume enormous amount of energy in every stage. In a building’s life span of about 60 years, operative and maintenance phase, has a large period and energy consumed during this period is obviously very high, but distributed over a period of 60 years. Energy consumption during this phase is more or less stream lined due to advancements in science and technology. We have efficient gadgets, home appliances, building automation to optimize energy consumption etc. This leaves behind, the construction phase of building’s life cycle, which is very critical from sustainability point of view. Greenhouse gas emissions contributing to global warming and climate change are phenomenal during the construction phase. These result in a phenomena called ‘Carbon Spike Phenomena (CSP)’ which occur in a short period of time as compared to operative and maintenance phase.

Global warming and Climate Change:

The two critical factors that call for immediate attention of all civil engineers and practitioners are: Climate change and Global warming. Climate change generally refers to all the various long term changes in our climate and Global warming refers to the observed warming of our planet due to greenhouse gasses emitted by human activities. Both these are interconnected and lead to one another. Role of civil engineers here is to assess the quantum of greenhouse gasses being emitted by the construction industry and make sustainability and sustainable development inclusive.

In the global energy consumption scenario, buildings, industries, transport and other sectors consume 31%, 27%, 28% and 14% respectively. In case of global greenhouse gas emission scenario, buildings, Industries, transport and other sectors emit 29%, 35%, 22% and 14% respectively. Out of this, 8 to 10% of the total CO2 emission is due to cement manufacturing process. This is mainly due to heating of kiln furnaces up to 1500 deg. C using enormous amount of fossil fuel. Due to this reason, laudably, many cement manufacturers are striving hard to optimize and refine their manufacturing processes. Greenhouse gas emission due to one tonne of manufactured cement varies from 0.65 to 1.0 tonne of CO2 equivalent.

Effect of Urbanisation:

About 70% of Indian population still lives in rural India and looking forward to migrate to towns and nearby cities for better living, better life style, better education, comfort etc. This migration puts enormous pressure on limited landmass, infrastructure available in cities. It is estimated that in the next forty years, India will experience one of the most dramatic transitions in the history of humankind. Population in cities will swell from current 300 million to 700 million-more than double. Mumbai-Nashik-Pune; Delhi region and greater Kolkata, will be the three largest urban concentrations in the world.  

Urbanisation has two important relationships in respect of climate change:

Effect of climate change on urbanisation: One of the critical reasons for migration could also be due to climate induced impacts like floods, draughts, storms etc. Population that migrates due to these reasons, termed as ‘Environmental Refugees’, will face different set of problems in urban scenario and also pose complications in terms of housing and other facilities.

Effect of urbanisation on climate change: Other set of population migrating for better lifestyle, better education, comfortable life etc. will adapt and adopt new conditions of urban scenario and start contributing to greenhouse gas emission, adding to global warming.

Global warming and climate change have become existential problem for humanity. We are already experiencing their impacts. More and more dangerous climate impacts are inevitable as we march ahead into the future. Unrestricted GHG emissions will cause more warming and raise the average earth temperature by 5.5 to 6.5 deg. C and raise sea levels by 6 to 7 meters. Existing urbanisation models are not suitable and sustainable at Indian Scale and there are no off-the-shelf alternative algorithms available for India. We need to chart our own path for sustainable growth. Decarbonisation is the only way forward. This is where, Civil Engineers and their role, comes into picture.

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Thursday, 9 November 2017

NEED OF THE HOUR


Four Million Civil Engineers, Architects and Planners By 2020

Built environment, comprising construction and real estate related activities, is one of the major contributors to the Indian economy, accounting for approximately 17 % of GDP. While Real estate sector projects a demand of 95 billion square feet by 2020, shortage of required manpower continues to be the main cause of worry. As on date, Engineering continues to dominate as a preferred discipline with about 3400 engineering colleges in India with a capacity of about 15 Lakh seats across 36 courses approved by the All India Council of Technical Education (AICTE). As per the recent research study taken up by RICS, the annual average demand of Civil Engineers, Architects and Planners together in the Built Environment during 2010-2020 shall be a staggering four million.  

Though India poses inadequate infrastructure, lack of transparency, lack of Governance as major obstacles, these can be overcome by introducing right policies and right strategies. Mammoth pool of talent that is available at this point in time and the domestic market driven by emerging middle class make India the most preferred and favoured Investment destination for FDI among the developing markets in the world. India now finds itself on an upward trajectory of growth cycle and with its proven resilience to counter economic challenges, sure to surge ahead. As a contrary phenomenon, a simple demand-supply analysis shows that against the demand of 127500 quality Civil engineers per annum, only 26500 competent Civil Engineers are available. Sustained period of shortfall in annual supply, coupled with an increasing year on year demand, could result in a cumulative demand of nearly 45 million core professionals, over 2010-20- as per the report.

Consequently, we also find placements dipping as IT firms shrink their offers and majority graduates turning their attention to Realty and Auto Sectors. It is time for the construction Industry to leverage this situation and channalise the youth power by providing them necessary vocational training and bring them on the main stream. Reports also indicate that India is poised to grow extensively in the fields of Sustainable Engineering.

Ajit Sabnis

Editor-in-Chief.

Thursday, 2 November 2017

WORLD'S FIRST 3D-PRINTED BRIDGE OPENS TO CYCLISTS IN NETHERLANDS
-Posted by Ajit Sabnis

            Dutch officials have toasted the opening of what is being called the world’s first 3D-printed concrete bridge, which is primarily meant to be used by cyclists. There was applause as officials wearing hard hats rode over the bridge on their bikes at the inauguration in the southeastern town of Gemert on Tuesday.


            “The bridge is not very big, but it was rolled out by a printer, which makes it unique,” Theo Salet, from the Eindhoven University of Technology, told Dutch broadcaster NOS. Work on printing the bridge, which has some 800 layers, took about three months after starting in June and it is made of reinforced, pre-stressed concrete, according to the university. “One of the advantages of printing a bridge is that much less concrete is needed than in the conventional technique in which a mould is filled,” it said on its website. “A printer deposits the concrete only where it is needed.” The eight-metre (26-ft) bridge spans a water-filled ditch to connect two roads, and in conjunction with the BAM Infra construction company was tested for safety to bear loads of up to two tonnes.

            “We are looking to the future,” said the head of BAM, Marinus Schimmel, adding in a statement that his company was constantly “searching for a newer, smarter approach to addressing infrastructure issues and making a significant contribution to improving the mobility and sustainability of our society”.


            The Netherlands is among countries, with the United States and China, taking a lead in the cutting-edge technology of 3D printing, using computers and robotics to construct objects and structures from scratch. Last year a Dutch architect unveiled a unique 3D printer with which he hopes to construct an “endless loop” building. And a Dutch start-up called MX3D has begun printing a stainless steel bridge, of which a third is already completed. (Source: website of 'theguardian')

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