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Earlier this century, jatropha was hailed as a "wonder" biofuel. An unassuming shrubby tree belonging to Central America, it was wildly promoted as a high-yielding, drought-tolerant biofuel feedstock that might grow on degraded lands throughout Latin America, Africa and Asia.
A jatropha rush ensued, with more than 900,000 hectares (2.2 million acres) planted by 2008. But the bubble burst. Low yields caused plantation failures almost everywhere. The consequences of the jatropha crash was polluted by allegations of land grabbing, mismanagement, and overblown carbon reduction claims.
Today, some scientists continue pursuing the evasive guarantee of high-yielding jatropha. A comeback, they state, is reliant on breaking the yield problem and addressing the damaging land-use problems linked with its original failure.
The sole remaining big jatropha plantation remains in Ghana. The plantation owner declares high-yield domesticated ranges have actually been attained and a brand-new boom is at hand. But even if this resurgence falters, the world's experience of jatropha holds essential lessons for any promising up-and-coming biofuel.
At the start of the 21st century, Jatropha curcas, an unassuming shrub-like tree belonging to Central America, was planted across the world. The rush to jatropha was driven by its guarantee as a sustainable source of biofuel that might be grown on degraded, unfertile lands so as not to displace food crops. But inflated claims of high yields fell flat.
Now, after years of research and development, the sole remaining big plantation focused on growing jatropha remains in Ghana. And Singapore-based jOil, which owns that plantation, declares the jatropha return is on.
"All those business that failed, embraced a plug-and-play design of hunting for the wild varieties of jatropha. But to advertise it, you need to domesticate it. This belongs of the procedure that was missed out on [throughout the boom]," jOil CEO Vasanth Subramanian told Mongabay in an interview.
Having gained from the mistakes of jatropha's previous failures, he says the oily plant might yet play an essential function as a liquid biofuel feedstock, decreasing transportation carbon emissions at the worldwide level. A new boom might bring fringe benefits, with jatropha likewise a prospective source of fertilizers and even bioplastics.
But some scientists are skeptical, keeping in mind that jatropha has actually already gone through one hype-and-fizzle cycle. They warn that if the plant is to reach complete capacity, then it is necessary to gain from past mistakes. During the very first boom, jatropha plantations were hampered not only by poor yields, but by land grabbing, deforestation, and social issues in nations where it was planted, including Ghana, where jOil runs.
Experts also recommend that jatropha's tale offers lessons for researchers and business owners exploring appealing brand-new sources for liquid biofuels - which exist aplenty.
Miracle shrub, major bust
Jatropha's early 21st-century appeal originated from its promise as a "second-generation" biofuel, which are sourced from yards, trees and other plants not obtained from edible crops such as maize, soy or oil palm. Among its several supposed virtues was an ability to flourish on degraded or "minimal" lands; hence, it was claimed it would never take on food crops, so the theory went.
Back then, jatropha ticked all packages, states Alexandros Gasparatos, now at the University of Tokyo's Institute for Future Initiatives. "We had a crop that appeared amazing; that can grow without excessive fertilizer, too many pesticides, or excessive demand for water, that can be exported [as fuel] abroad, and does not take on food due to the fact that it is poisonous."
Governments, worldwide firms, financiers and business purchased into the buzz, launching efforts to plant, or promise to plant, countless hectares of jatropha. By 2008, plantations covered some 900,000 hectares (2.2 million acres) in Latin America, Africa and Asia, according to a market study prepared for WWF.
It didn't take wish for the mirage of the amazing biofuel tree to fade.
In 2009, a Pals of the Earth report from Eswatini (still known at the time as Swaziland) cautioned that jatropha's high needs for land would certainly bring it into direct dispute with food crops. By 2011, a global review kept in mind that "growing exceeded both scientific understanding of the crop's potential along with an understanding of how the crop suits existing rural economies and the degree to which it can grow on minimal lands."
Projections approximated 4.7 million hectares (11.7 million acres) would be planted by 2010, and 12.8 million hectares (31.6 million acres) by 2015. However, only 1.19 million hectares (2.94 million acres) were growing by 2011. Projects and plantations began to stop working as expected yields refused to emerge. Jatropha could grow on abject lands and tolerate dry spell conditions, as claimed, but yields remained bad.
"In my viewpoint, this mix of speculative investment, export-oriented capacity, and prospective to grow under fairly poorer conditions, produced a really big issue," resulting in "undervalued yields that were going to be produced," Gasparatos states.
As jatropha plantations went from boom to bust, they were likewise afflicted by environmental, social and financial troubles, say specialists. Accusations of land grabs, the conversion of food crop lands, and cleaning of natural locations were reported.
Studies discovered that land-use change for jatropha in countries such as Brazil, Mexico and Tanzania caused a loss of biodiversity. A study from Mexico found the "carbon payback" of jatropha plantations due to associated forest loss ranged between two and 14 years, and "in some scenarios, the carbon financial obligation might never ever be recuperated." In India, production revealed carbon advantages, however using fertilizers led to boosts of soil and water "acidification, ecotoxicity, eutrophication."
"If you look at many of the plantations in Ghana, they claim that the jatropha produced was positioned on marginal land, however the idea of limited land is really elusive," describes Abubakari Ahmed, a speaker at the University for Development Studies, Ghana. He studied the ramifications of jatropha plantations in the country over a number of years, and discovered that a lax meaning of "minimal" indicated that assumptions that the land co-opted for jatropha plantations had actually been lying unblemished and unused was typically illusory.
"Marginal to whom?" he asks. "The truth that ... currently no one is using [land] for farming doesn't imply that no one is using it [for other purposes] There are a great deal of nature-based livelihoods on those landscapes that you might not necessarily see from satellite images."
Learning from jatropha
There are crucial lessons to be learned from the experience with jatropha, say analysts, which should be followed when considering other advantageous second-generation biofuels.
"There was a boom [in financial investment], however regrettably not of research study, and action was taken based upon supposed advantages of jatropha," says Bart Muys, a teacher in the Division of Forest, Nature and Landscape at the University of Leuven, Belgium. In 2014, as the jatropha buzz was winding down, Muys and colleagues released a paper citing crucial lessons.
Fundamentally, he explains, there was a lack of understanding about the plant itself and its requirements. This essential requirement for in advance research could be applied to other potential biofuel crops, he says. In 2015, for example, his group launched a paper analyzing the yields of pongamia (Millettia pinnata), a "fast-growing, leguminous and multipurpose tree types" with biofuel promise.
Like jatropha, pongamia can be grown on degraded and marginal land. But Muys's research revealed yields to be extremely variable, contrary to other reports. The team concluded that "pongamia still can not be thought about a significant and steady source of biofuel feedstock due to continuing understanding gaps." Use of such cautionary data might prevent wasteful monetary speculation and negligent land conversion for brand-new biofuels.
"There are other extremely appealing trees or plants that might function as a fuel or a biomass producer," Muys states. "We wished to prevent [them going] in the exact same direction of premature buzz and fail, like jatropha."
Gasparatos underlines crucial requirements that need to be satisfied before continuing with new biofuel plantations: high yields should be opened, inputs to reach those yields comprehended, and a prepared market needs to be available.
"Basically, the crop requires to be domesticated, or [clinical understanding] at a level that we understand how it is grown," Gasparatos states. Jatropha "was practically undomesticated when it was promoted, which was so strange."
How biofuel lands are obtained is likewise crucial, says Ahmed. Based upon experiences in Ghana where communally utilized lands were bought for production, authorities need to ensure that "standards are put in location to examine how massive land acquisitions will be done and recorded in order to decrease a few of the issues we observed."
A jatropha resurgence?
Despite all these difficulties, some scientists still think that under the right conditions, jatropha might be a valuable biofuel option - especially for the difficult-to-decarbonize transportation sector "accountable for around one quarter of greenhouse gas emissions."
"I think jatropha has some possible, but it needs to be the ideal material, grown in the best place, and so on," Muys stated.
Mohammad Alherbawi, a postdoctoral research study fellow at Qatar's Hamad Bin Khalifa University, continues holding out hope for jatropha. He sees it as a manner in which Qatar might decrease airline company carbon emissions. According to his price quotes, its usage as a jet fuel could lead to about a 40% reduction of "cradle to grave" emissions.
Alherbawi's team is conducting continuous field studies to improve jatropha yields by fertilizing crops with sewage sludge. As an added advantage, he envisages a jatropha green belt covering 20,000 hectares (almost 50,000 acres) in Qatar. "The execution of the green belt can actually boost the soil and agricultural lands, and protect them versus any additional degeneration caused by dust storms," he says.
But the Qatar project's success still depends upon many elements, not least the ability to obtain quality yields from the tree. Another crucial action, Alherbawi discusses, is scaling up production innovation that utilizes the totality of the jatropha fruit to increase processing effectiveness.
Back in Ghana, jOil is presently handling more than 1,300 hectares (1,830 acres) of jatropha, and growing a pilot plot on 300 hectares (740 acres) dealing with more than 400 farmers. Subramanian discusses that years of research and development have actually resulted in varieties of jatropha that can now achieve the high yields that were lacking more than a decade ago.
"We had the ability to accelerate the yield cycle, improve the yield variety and enhance the fruit-bearing capability of the tree," Subramanian says. In essence, he states, the tree is now domesticated. "Our first job is to expand our jatropha plantation to 20,000 hectares."
Biofuels aren't the only application JOil is looking at. The fruit and its byproducts might be a source of fertilizer, bio-candle wax, a charcoal substitute (important in Africa where much wood is still burned for cooking), and even bioplastics.
But it is the transport sector that still beckons as the ideal biofuels application, according to Subramanian. "The biofuels story has as soon as again resumed with the energy shift drive for oil business and bio-refiners - [driven by] the look for alternative fuels that would be emission friendly."
A total jatropha life-cycle assessment has yet to be completed, however he believes that cradle-to-grave greenhouse gas emissions associated with the oily plant will be "competitive ... These 2 aspects - that it is technically suitable, and the carbon sequestration - makes it an extremely strong candidate for adoption for ... sustainable air travel," he states. "Our company believe any such growth will happen, [by clarifying] the definition of degraded land, [enabling] no competitors with food crops, nor in any method endangering food security of any country."
Where next for jatropha?
Whether jatropha can genuinely be carbon neutral, eco-friendly and socially accountable depends on complicated factors, consisting of where and how it's grown - whether, for instance, its production model is based in smallholder farms versus industrial-scale plantations, state specialists. Then there's the bothersome problem of accomplishing high yields.
Earlier this year, the Bolivian federal government announced its intent to pursue jatropha plantations in the Gran Chaco biome, part of a national biofuels press that has actually stirred dispute over possible repercussions. The Gran Chaco's dry forest biome is already in deep trouble, having been heavily deforested by aggressive agribusiness practices.
Many previous plantations in Ghana, warns Ahmed, converted dry savanna woodland, which became problematic for carbon accounting. "The net carbon was typically unfavorable in the majority of the jatropha websites, since the carbon sequestration of jatropha can not be compared to that of a shea tree," he discusses.
Other scientists chronicle the "capacity of Jatropha curcas as an ecologically benign biodiesel feedstock" in Malaysia, Indonesia and India. But still other researchers remain doubtful of the eco-friendly practicality of second-generation biofuels. "If Mexico promotes biofuels, such as the exploitation of jatropha, the rebound is that it potentially ends up being so successful, that we will have a great deal of associated land-use modification," says Daniel Itzamna Avila-Ortega, co-founder of the Mexican Center of Industrial Ecology and a Ph.D. trainee with the Stockholm Resilience Centre; he has actually performed research study on the possibilities of jatropha contributing to a circular economy in Mexico.
Avila-Ortega mentions past land-use problems connected with growth of various crops, consisting of oil palm, sugarcane and avocado: "Our law enforcement is so weak that it can not manage the private sector doing whatever they want, in terms of creating ecological problems."
Researchers in Mexico are presently checking out jatropha-based animals feed as an affordable and sustainable replacement for grain. Such usages may be well matched to local contexts, Avila-Ortega agrees, though he stays concerned about prospective environmental costs.
He recommends restricting jatropha expansion in Mexico to make it a "crop that conquers land," growing it just in genuinely bad soils in requirement of restoration. "Jatropha could be among those plants that can grow in very sterilized wastelands," he explains. "That's the only method I would ever promote it in Mexico - as part of a forest healing method for wastelands. Otherwise, the involved problems are greater than the possible benefits."
Jatropha's global future stays unpredictable. And its potential as a tool in the battle against environment change can just be unlocked, state many specialists, by avoiding the litany of difficulties associated with its first boom.
Will jatropha jobs that sputtered to a stop in the early 2000s be fired back up again? Subramanian thinks its role as a sustainable biofuel is "impending" which the comeback is on. "We have strong interest from the energy industry now," he states, "to team up with us to establish and expand the supply chain of jatropha."
Banner image: Jatropha curcas trees in Hawai'i. Image by Forest and Kim Starr by means of Flickr (CC BY 2.0).
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Citations:
Wahl, N., Hildebrandt, T., Moser, C., Lüdeke-Freund, F., Averdunk, K., Bailis, R., ... Zelt, T. (2012 ). Insights into jatropha projects worldwide - Key truths & figures from a global survey. Centre for Sustainability Management (CSM), Leuphana Universität Lüneburg. doi:10.2139/ ssrn.2254823
Romijn, H., Heijnen, S., Colthoff, J. R., De Jong, B., & Van Eijck, J. (2014 ). Economic and social sustainability performance of jatropha projects: Arise from field studies in Mozambique, Tanzania and Mali. Sustainability, 6( 9 ), 6203-6235. doi:10.3390/ su6096203
Trebbin, A. (2021 ). Land grabbing and jatropha in India: An analysis of 'hyped' discourse on the topic. Land, 10( 10 ), 1063. doi:10.3390/ land10101063
Van Eijck, J., Romijn, H., Balkema, A., & Faaij, A. (2014 ). Global experience with jatropha cultivation for bioenergy: An assessment of socio-economic and environmental elements. Renewable and Sustainable Energy Reviews, 32, 869-889. doi:10.1016/ j.rser.2014.01.028
Skutsch, M., De los Rios, E., Solis, S., Riegelhaupt, E., Hinojosa, D., Gerfert, S., ... Masera, O. (2011 ). Jatropha in Mexico: ecological and social effects of an incipient biofuel program. Ecology and Society, 16( 4 ). doi:10.5751/ ES-04448-160411
Gmünder, S., Singh, R., Pfister, S., Adheloya, A., & Zah, R. (2012 ). Environmental impacts of Jatropha curcas biodiesel in India. Journal of Biomedicine and Biotechnology, 2012. doi:10.1155/ 2012/623070
Ahmed, A., Jarzebski, M. P., & Gasparatos, A. (2018 ). Using the community service method to determine whether jatropha tasks were found in marginal lands in Ghana: Implications for website selection. Biomass and Bioenergy, 114, 112-124. doi:10.1016/ j.biombioe.2017.07.020
Achten, W. M., Sharma, N., Muys, B., Mathijs, E., & Vantomme, P. (2014 ). Opportunities and restrictions of promoting brand-new tree crops - Lessons learned from jatropha. Sustainability, 6( 6 ), 3213-3231. doi:10.3390/ su6063213
Alherbawi, M., McKay, G., Govindan, R., Haji, M., & Al-Ansari, T. (2022 ). An unique technique on the delineation of a multipurpose energy-greenbelt to produce biofuel and fight desertification in deserts. Journal of Environmental Management, 323, 116223. doi:10.1016/ j.jenvman.2022.116223
Riayatsyah, T. M. I., Sebayang, A. H., Silitonga, A. S., Padli, Y., Fattah, I. M. R., Kusumo, F., ... Mahlia, T. M. I. (2022 ). Current progress of Jatropha curcas commoditisation as biodiesel feedstock: A comprehensive review. Frontiers in Energy Research, 9, 1019. doi:10.3389/ fenrg.2021.815416
Mokhtar, E. S., Akhir, N. M., Zaki, N. A. M., Muharam, F. M., Pradhan, B., & Lay, U. S. (2021 ). Land viability for potential jatropha plantation in Malaysia. IOP Conference Series: Earth and Environmental Science, 620( 1 ), 012002. doi:10.1088/ 1755-1315/620/ 1/012002
Chamola, R., Kumar, N., & Jain, S. (2022 ). Jatropha: A sustainable source of transport fuel in India. In Advancement in Materials, Manufacturing and Energy Engineering, Vol. II: Select Proceedings of ICAMME 2021 (pp. 395-408). Singapore: Springer Nature Singapore. doi:10.1007/ 978-981-16-8341-1_32
Peralta, H., Avila-Ortega, D. I., & García-Flores, J. C. (2022 ). Jatropha farm: A circular economy proposal for the non-toxic physic nut crop in Mexico. Environmental Sciences Proceedings, 15( 1 ), 10. doi:10.3390/ environsciproc2022015010
Hao, M., Qian, Y., Xie, X., Chen, S., Ding, F., & Ma, T. (2022 ). Global limited land accessibility of Jatropha curcas L.-based biodiesel development. Journal of Cleaner Production, 364, 132655. doi:10.1016/ j.jclepro.2022.132655
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