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Chlorophyll –The Life-giver is in peril

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Chlorophyll

Chlorophyll is the green pigment found in plants, algae, and cyanobacteria. It is essential for photosynthesis, the process by which light energy is converted into chemical energy to sustain life on Earth. As it is green it reflects Green of the sunlight spectrum and absorbs its  Red and Blue ranges. The energy in these rays are used to produce carbohydrates utilising water and carbon dioxide and releasing oxygen in the process. Thus, it performs, in this reaction, three functions essential for life on earth; it produces food and oxygen and removes carbon dioxide from the atmosphere to maintain equilibrium in our environment. It is one of the wonders of nature that are in peril today. It is essential for life on earth, at least for the present, as there are no suitable alternatives. While chlorophyll can be produced in a lab, it cannot be produced using simple, everyday chemicals in a straightforward process. The total synthesis of chlorophyll is an extremely complex multi-step organic chemistry process that requires specialized knowledge, advanced laboratory equipment, and numerous complex intermediary compounds and catalysts.

Chlorophyll probably evolved inside bacteria in water and migrated to land with plants that preceded animals who also evolved in water. Plants had to come on land first to oxygenate the atmosphere and make it possible for animals to follow. There was very little oxygen in the ocean or on the surface before chlorophyll carrying bacteria and algae started photosynthesis. Now 70% of our atmospheric oxygen is produced by sea phytoplankton and algae, hence the importance of the sea as a source of oxygen.

Chemically, chlorophyll is a porphyrin compound with a central magnesium (Mg²⁺) ion. Factors that affect its production and function are light intensity, availability of nutrients, especially nitrogen and magnesium,  water supply and temperature. Availability of nutrients and temperature could be adversely affected due to sea pollution and global warming respectively.

Temperature range for optimum chlorophyll function is 25 – 35 C depending on the types of plants. Plants in temperate climates are adopted to function at lower temperatures and those in tropical regions prefer higher temperatures. Chlorophyll in most plants work most efficiently at 30 C. At lower temperatures it could slow down and become dormant. At temperatures above 40 C chlorophyll enzymes  begin to denature and protein complexes can be damaged.  Photosynthesis would decline sharply at these high temperatures.

Global warming therefore could affect chlorophyll function and threaten its very existence. Already there is a qualitative as well as quantitative decline of chlorophyll particularly in the sea. The last decade has been the hottest ten years and 2024 the hottest year since recording had started. The ocean absorbs 90% of the excess heat that reaches the Earth due to the greenhouse effect. Global warming has caused sea surface temperatures to rise significantly, leading to record-breaking temperatures in recent years (like 2023-2024), a faster warming rate (four times faster than 40 years ago), and more frequent, intense marine heatwaves, disrupting marine life and weather patterns. The ocean’s surface is heating up much faster, about four times quicker than in the late 1980s, with the last decade being the warmest on record. 2023 and 2024 saw unprecedented high sea surface temperatures, with some periods exceeding previous records by large margins, potentially becoming the new normal.

Half of the global sea surface has gradually changed in colour indicating chlorophyll decline (Frankie Adkins, 2024, Z Hong, 2025). Sea is blue in colour due to the absorption of Red of the sunlight spectrum  by water and reflecting Blue. When the green chlorophyll of the phytoplankton is decreased the sea becomes bluer. Researchers from MIT and Georgia Tech found these color changes are global, affecting over half the ocean’s surface in the last two decades, and are consistent with climate model predictions. Sea phytoplankton and algae produce more than 70% of the atmospheric oxygen, replenishing what is consumed by animals. Danger to the life of these animals including humans due to decline of sea chlorophyll is obvious. Unless this trend is reversed there would be irreparable damage and irreversible changes in the ecosystems that involve chlorophyll function as a vital component.

The balance 30% of oxygen is supplied mainly by terrestrial plants which are lost due mainly to human action, either by felling and clearing or due to global warming. Since 2000, approximately 100 million hectares of forest area was lost globally by 2018 due to permanent deforestation. More recent estimates from the UN’s Food and Agriculture Organization (FAO) indicate that an estimated 420 million hectares of forest have been lost through deforestation since 1990, with a net loss of approximately 4.7 million hectares per year between 2010 and 2020 (accounting for forest gains by reforestation). From 2001 to 2024, there had been a total of 520 million hectares of tree cover loss globally. This figure includes both temporary loss (e.g., due to fires or logging where forests regrow) and permanent deforestation. Roughly 37% of tree cover loss since 2000 was likely permanent deforestation, resulting in conversion to non-forest land uses such as agriculture, mining, or urban development. Tropical forests account for the vast majority (nearly 94%) of permanent deforestation, largely driven by agricultural expansion.  Limiting warming to 1.5°C significantly reduces risks, but without strong action, widespread plant loss and biodiversity decline are projected, making climate change a dominant threat to nature, notes the World Economic Forum. Tropical trees are Earth’s climate regulators—they cool the planet, store massive amounts of carbon, control rainfall, and stabilize global climate systems. Losing them would make climate change faster, hotter, and harder to reverse.

Another vital function of chlorophyll is carbon fixing. Carbon fixation by plants is crucial because it converts atmospheric carbon dioxide into organic compounds, forming the base of the food web, providing energy/building blocks for life, regulating Earth’s climate by removing greenhouse gases, and driving the global carbon cycle, making life as we know it possible. Plants use carbon fixation (photosynthesis) to create their own food (sugars), providing energy and organic matter that sustains all other life forms.  By absorbing vast amounts of CO2 (a greenhouse gas) from the atmosphere, plants help control its concentration, mitigating global warming. Chlorophyll drives the Carbon Cycle, it’s the primary natural mechanism for moving inorganic carbon into the biosphere, making it available for all living organisms.

In essence, carbon fixation turns the air we breathe out (carbon dioxide) into the food we eat and the air we breathe in (oxygen), sustaining ecosystems and regulating our planet’s climate.

While land plants store much more total carbon in their biomass, marine plants (like phytoplankton) and algae fix nearly the same amount of carbon annually as all terrestrial plants combined, making the ocean a massive and highly efficient carbon sink, especially coastal ecosystems that sequester carbon far faster than forests. Coastal marine plants (mangroves, salt marshes, seagrasses) are extremely efficient carbon sequesters, absorbing carbon at rates up to 50 times faster than terrestrial forests.

If Chlorophyll decline, which is mainly due to human action driven by uncontrolled greed, is not arrested as soon as possible life on Earth would not be possible.

(Some information was obtained from Wikipedia)

by N. A. de S. Amaratunga ✍️



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Opinion

V. Shanmuganyagam (1940-2026): First Clas Engineer, First Class Teacher

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Quiet flows another don. The aging fraternity of Peradeniya Engineering alumni has lost another one of its beloved teachers. V. Shanmuganayagam, an exceptionally affable and popular lecturer for nearly two decades at the Peradeniya Engineering Faculty, passed away on 15 January 2026, in Markham, Toronto, Canada. Shan, as he was universally known, graduated with First Class Honours in Civil Engineering, in 1962, when the Faculty was located in Colombo. He taught at Peradeniya from 1967 to 1984, and later at the Nanyang Technological University in Singapore, before retiring to live in Canada.

V. Shanmuganayagam

In October last year, one of our colleagues, Engineer P. Balasundram, organized a lunch in Toronto to felicitate Shan. It was very well attended and Shan was in good spirits. At 85 he was looking as young as any of us, except for using a wheelchair to facilitate his movement. The gathering was remarkable for the outpouring of warmth and gratitude by nearly 40 or 50 Engineers, who had graduated in the early 1970s and now in their own seventies. One by one every one who was there spoke and thanked Shan for making a difference in their lives as a teacher and a mentor, not only in their professional lives but by extension in their personal lives as well.

As we were leaving the luncheon gathering there were suggestions to have more such events and to have Shan with us for more reminiscing. That was not to be. Within three months, a sudden turn for the worse in his condition proved to be irreversible. He passed away peacefully, far away across the world from the little corner of little Sri Lanka where he was born and raised, and raised in a manner to make a mark in his life and to make a difference in the lives of others who were his family, friends and several hundreds of engineering professionals whom he taught.

V. Shanmuganayagam was born on May 30, 1940, in Point Pedro, to Culanthavel and Sellam Venayagampillai. His family touchingly noted in the obituary that he was raised in humble beginnings, but more consequentially his values were cast in the finest of moulds. He studied at Hartley College, Point Pedro, and was one of the four outstanding Hartleyites to study engineering, get their first class and join the academia. Shan was preceded by Prof. A. Thurairajah, easily Sri Lanka’s most gifted academic engineering mind, and was followed by David Guanaratnam and A.S. Rajendra. All of them did Civil Engineering, and years later Hartley would send a new pair of outstanding students, M. Sritharan and K. Ramathas who would go on to become highly accomplished Electrical Engineers.

Shan graduated in 1962 with First Class Honours and may have been one of a very few if not the only first class that year. Shan worked for a short while at the Ceylon Electricity Board before proceeding to Cambridge for postgraduate studies specializing in Structures. His dissertation on the Ultimate Strength of Encased Beams is listed in the publications of the Cambridge Structures Group. He returned to his job at CEB and then joined the Faculty in 1967. At that time, Shan may have been one of the more senior lecturers in Structures after Milton Amaratunga who too passed away late last year in Southampton, England.

When we were students in the early 1970s, there was an academic debate at the Faculty as to whether a university or specific faculties should give greater priority to teaching or research. Shan was on the side of teaching and he was quite open about it in his classes. He would supplement his lectures with cyclostyled sheets of notes and the students naturally loved it. It was also a time when Shan and many of his colleagues were young bachelors at Peradeniya, and their lives as academic bachelors have been delightfully recounted in a number of online circulations.

by Rajan Philips

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Cannavarella: Estate once owned by OEG with a heritage since 1880

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Established in 1880, Cannavarella Estate stands among the most historically significant plantations in Sri Lanka, carrying a legacy that intertwines agricultural heritage, colonial transitions and modern development. Its story begins with the cultivation of cinchona, a medicinal bark used to produce quinine, which is a vital treatment for malaria at the time, introduced when coffee estates across the island were failing.

Under the ownership of Messrs Macfarlane, Cannavarella rapidly gained a reputation for producing cinchona at ideal elevations between 4,000 and 5,000 feet above sea level. At that time, the estate spanned around 750 acres and played a pivotal role in the island’s shift from coffee to alternative plantation crops during the late 19th century.

A transformative chapter began when Christopher B. Smith purchased the property and unified several surrounding estates- Moussagolla, Cannavarella, East Gowerakelle, and Naminacooly- into what became known as the Cannavarella Group. This amalgamation created a vast holding of approximately 1,800 acres. By 1915, nearly 1,512 acres of this extent were cultivated in tea, marking the estate’s full transition from cinchona to the crop that would define its identity for generations.

The Group was managed by the Eastern Produce and Estates Company from 1915 until 1964, after which stewardship passed successively to Walker & Sons Company Ltd, and then to George Steuart Company Ltd by 1969.

A defining moment in the estate’s history arrived in 1971 when Sir Oliver Goonetilleke, former Governor General of Ceylon, acquired the estate. Under his ownership, it came under the London-based company Ceyover Ltd., a name derived from “Cey” for Ceylon and “Over” for Oliver.

The estate remained under private ownership until the nationalization wave of 1975, during which Cannavarella was brought under the Janatha Estates Development Board (JEDB). For nearly two decades it was managed under government purview until the plantation sector was re-privatised in 1992.

Sir Oliver Goonetilleke

Thereafter, Cannavarella Estate moved under the management of Namunukula Plantations Limited, first through BC Plantation Services, then under John Keells Holdings’ Keells Plantation Management Services and eventually under the ownership of Richard Pieris & Company PLC, where it continues today as part of the Arpico Plantations portfolio.

Blending heritage, landscape and community

Situated along the northeastern slopes of the scenic Kabralla-Moussagolla range and bordering the Namunukula mountain range, Cannavarella Estate spans a total extent of 800 hectares. Its six divisions rise across elevations from 910 to 1,320 metres above sea level, creating a landscape ideal for cultivating premium high-grown tea. Of the total land area, 351 hectares are dedicated to mature tea, while 54 hectares consist of VP tea, representing 16 % of the estate.

Among its most remarkable features are fields containing seedling tea bushes more than a century old, living symbols of Sri Lanka’s plantation legacy that continue to thrive across the slopes. The estate is also home to the origin of the Menik River, which begins its journey in the Moussagolla Division, adding an ecological richness to Cannavarella’s natural environment.

Cannavarella’s history of leadership reflects broader transformations within the plantation industry. The last English superintendent, Mr. Charles Edwards, oversaw the estate during the final phase of British management. In 1972, he was succeeded by Franklin Jacob, who became the first Sri Lankan superintendent of the Cannavarella Group, marking a shift toward local leadership and expertise in plantation management.

Development within Cannavarella Estate has never been confined to agriculture alone. Over the past decade, the estate has strengthened its emphasis on community care, diversification and improving living conditions for its workers. In 2022, coffee planting was initiated in Fields 7 and 8 of the NKU Division, covering 2.5 hectares as part of a broader effort to introduce alternative revenue streams while complementing tea cultivation.

The estate’s commitment to early childhood development is reflected in the initiation of a morning meal programme across all Child Development Centres from 2025, ensuring that children receive nutritious meals each day. A newly constructed Child Development Centre in the EGK Division, completed in 2020, now offers modern facilities including a play area, study room and kitchen, symbolizing the estate’s dedication to nurturing the next generation. In 2015, a housing scheme consisting of 23 new homes was completed and handed over to workers in the CVE Division, significantly improving quality of life and providing families with safer, more stable living environments.

A future built on stability and renewal

Cannavarella Estate is preparing to undertake one of its most important social development initiatives. A major housing programme has been proposed to relocate 69 families currently residing in landslide-prone areas of the Moussagolla Division. Supported by the Indian Housing Programme, this effort aims to provide secure, sustainable housing in safer terrain, ensuring long-term stability for vulnerable families and reducing disaster risk in the region.

Across its history, Cannavarella Estate has remained a landscape shaped both by the land and the people who call it home. Cannavarella continues to honour its roots while building a modern legacy that uplifts both the estate and its people. (Planters Association news release)

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Opinion

From the Lecture Hall to the Global Market: How Sri Lankan students are mastering the “Gig Economy”

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Image : Courtesy South China Morning Post

Have you ever wondered how a university student, between heavy textbooks and late-night study sessions, manages to earn a professional income in US dollars? It sounds like a dream, but for thousands of Sri Lankans, it’s becoming a daily reality through online freelancing.

A recent study published in the Ianna Journal of Interdisciplinary Studies has pulled back the curtain on this digital revolution. By interviewing 21 successful student freelancers across Sri Lanka, researchers have mapped out exactly what it takes to turn a laptop and an internet connection into a thriving career.

The Rise of the “Earn-as-you-learn” Era

In Sri Lanka, the number of online freelancers has exploded from about 20,000 in 2016 to over 150,000 today. While our traditional education system often focuses on preparing students for 9-to-5 office jobs , these students are diving into the “Gig Economy” a digital marketplace where they sell specific skills, like graphic design or programming, to clients all over the world.

The Secret Sauce for Success

So, what makes some students succeed while others struggle? The research found that it isn’t just about being good at coding or design. Success comes down to six “Core Pillars”:

· A Growth Mindset: The digital world moves fast. Successful students don’t just learn one skill; they are constantly updating themselves to ensure they don’t become “outdated”

· The Balancing Act:

How do they handle exams and clients? They don’t use a magic wand; they use strict time management. Many work late into the night (from 6 p.m. to midnight) to accommodate international time zones.

· The Power of “Hello”:

Since most clients are in the USA or UK, strong English and clear communication are vital. It’s about more than just talking; it’s about negotiating prices and building trust.

· Proactive Problem Solving:

Successful freelancers don’t wait for things to go wrong. They update their clients regularly and fix issues before they become headaches.

Why This Matters for Sri Lanka

Right now, our universities don’t always teach “how to be a freelancer”. This study suggests that if we integrate freelancing modules and mentorship into our degree programs, we could significantly reduce graduate unemployment. It’s a way for students to gain financial independence and bring much-needed foreign currency into our economy while still in school.

You Can Do It Too

If you’re a student (or the parent of one), the message is clear: the global market is open for business. You don’t need to wait for graduation to start your career. With a bit of flexibility, a willingness to keep learning, and a proactive attitude, you can transition from a learner to an earner.

The Research Team Behind the Study

This groundbreaking research was conducted by a dedicated team from the Department of Business Management at the SLIIT Business School (Sri Lanka Institute of Information Technology). The authors of the study include:

· Lihini Niranjana Dasanayaka

· Thuvindu Bimsara Madanayake

· Kalana Gimantha Jayasekara

· Thilina Dinidu Illepperuma

· Ruwanthika Chandrasiri

· Gayan Bandara

by Ruwanthika Chandrasiri

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