Palm oil production
The oil palm originated in West Africa but has since been planted successfully in tropical regions within 20 degrees of the equator. There is evidence of palm oil use in Ancient Egypt.[citation needed] In the Republic of the Congo, or Congo Brazzaville, precisely in the Northern part, not far from Ouesso, local people produce this oil by hand. They harvest the fruit, boil it to let the water part evaporate, then they press what is left in order to collect the reddish, orange colored oil.In 1995, Malaysia was the world's largest producer with 51% of world production. Since 2007, Indonesia emerged the world's largest producer of palm oil producing approximately 50% of world palm oil volume.
Worldwide palm oil production during the 2005-2006 growing season was 39.8 million metric tons, of which 4.3 million tons was in the form of palm kernel oil. It is thus by far the most widely-produced tropical oil, and constitutes thirty percent of total edible oil production worldwide.[24].
Social and environmental impacts
See also: Environmental impact of palm oil
The social and environmental impacts of oil palm cultivation is a highly controversial topic. There are multiple sources highlighting the positive and negative aspects of this industry.[7][25][26] Oil palm is a valuable economic crop and provides a major source of employment. It allows many small landholders to participate in the cash economy and also often results in the upgrade of the infrastructure (schools, roads, telecommunications) within that area.[citation needed] However, there are cases where native customary lands have been appropriated by oil palm plantations without any form of consultation or compensation,[27] leading to social conflict between the plantations and local residents.[28] In some cases oil palm plantations are dependent on imported labour or illegal immigrants, and there are some concerns about the employment conditions and social impacts of these practices.[29]Biodiversity loss (including the potential extinction of charismatic species) is one of the most serious negative effects of oil palm cultivation. Large areas of already threatened tropical rainforest often need to be cleared to make way for plantations, especially in South-East Asia where there is a lack of enforcement of forest protection laws. The impacts of oil palm plantations on the environment is dependent on multiple factors, including the existence and compliance to environmental legislation, the pre-establishment habitat and corporate responsibility. In some states where oil palm is established there had been little enforcement of environmental legislation leading to encroachment of plantations into protected areas,[30] encroachment into riparian strips,[31] open burning of plantation wastes[citation needed] and release of palm mill pollutants such as palm oil mill effluent (POME) in the environment.[31] Some of these states have recognised the need for increased environmental protection and this is resulting in more environmental friendly practices.[32][33]. Among those approaches is anaerobic treatment of POME. POME can be a good source for biogas (CH4) production and electricity generation. Anaerobic treatment of POME has been practiced in Malaysia and Indonesia. Like most wastewater sludge, anaerobic treatment of POME results in domination of Methanosaeta concilii. It plays an important role in methane production from acetate and the optimum condition for its growth should be considered to harvest biogas as renewable fuel.[34]
Demand for palm oil has increased in recent years due to its use as a biofuel[35], but recognition that this increases the environmental impact of cultivation as well as causing a food vs fuel issue has forced some developed nations to reconsider their policies on biofuel to improve standards and ensure sustainability.[36] However, critics point out that even companies signed up to the Roundtable on Sustainable Palm Oil continue to engage in environmentally damaging practices[37] and that using palm oil as biofuel is perverse because it encourages the conversion of natural habitats such as forests and peatlands, releasing large quantities of greenhouse gases[38].
Carbon balance
Main article: Environmental impact of palm oil
Oil palm production has been documented as a cause of substantial and often irreversible damage to the natural environment.[39] Its impacts include: deforestation, habitat loss of critically endangered species[40][41][42], and a significant increase in greenhouse gas emissions[43].The pollution is exacerbated because many rainforests in Indonesia and Malaysia lie atop peat bogs that store great quantities of carbon that are released when the forests are cut down and the bogs drained to make way for the palm oil plantations.
Environmental groups such as Greenpeace claim that the deforestation caused by making way for oil palm plantations is far more damaging for the climate than the benefits gained by switching to biofuel.[44].[45] Fresh land clearances, especially in Borneo, are contentious for their environmental impact.[46][47] NGOs and many international bodies are now warning that, despite thousands of square kilometres of land standing unplanted in Indonesia, tropical hardwood forests are being cleared for palm oil plantations. Furthermore, as the remaining unprotected lowland forest dwindles, developers are looking to plant peat swamp land, using drainage that unlocks the carbon held in their trees, and begins an oxidation process of the peat which can release 5,000 to 10,000 years worth of stored carbon. Drained peat is also at very high risk of forest fire, and there is a clear record of fire being used to clear vegetation for oil palm development in Indonesia. Drought and man-made clearances have led to massive uncontrolled forest fires over recent years, covering parts of Southeast Asia in haze and leading to an international crisis with Malaysia. These fires have been variously blamed on a government with little ability to enforce its own laws while impoverished small farmers and large plantation owners illegally burn and clear forests and peat lands to reap the developmental benefits of environmentally-valuable land.[48][49]
Many of the major companies in the vegetable oil economy participate in the Roundtable on Sustainable Palm Oil, which is trying to address this problem. In 2008 Unilever, a member of the group, committed to use only oil palm oil which is certified as sustainable, by ensuring that the large companies and smallholders that supply it convert to sustainable production by 2015.[50]
Meanwhile, much of the recent investment in new palm plantations for biofuel has been part-funded through carbon credit projects through the Clean Development Mechanism; however the reputational risk associated with unsustainable palm plantations in Indonesia has now made many funds wary of investing there.[51]
Palm biomass as fuel
Some scientists and companies are going beyond using just the oil, and are proposing to convert fronds, empty fruit bunches and palm kernel shells harvested from oil palm plantations into renewable electricity,[52] cellulosic ethanol,[53] biogas,[54] biohydrogen[55] and bioplastic.[56] Thus, by using both the biomass from the plantation as well as the processing residues from palm oil production (fibers, kernel shells, palm oil mill effluent), bioenergy from palm plantations can have an effect on reducing greenhouse gas emissions. Examples of these production techniques have been registered as projects under the Kyoto Protocol's Clean Development Mechanism.By using palm biomass to generate renewable energy, fuels and biodegradable products, both the energy balance and the greenhouse gas emissions balance for palm biodiesel is improved. For every tonne of palm oil produced from fresh fruit bunches, a farmer harvests around 6 tonnes of waste palm fronds, 1 tonne of palm trunks, 5 tonnes of empty fruit bunches, 1 tonne of press fiber (from the mesocarp of the fruit), half a tonne of palm kernel endocarp, 250 kg of palm kernel press cake, and 100 tonnes of palm oil mill effluent. Oil palm plantations incinerate biomass to generate power for palm oil mills. Oil palm plantations yield large amount of biomass that can be recycled into medium density fibreboards and light furniture.[57] In efforts to reduce greenhouse gas emissions, scientists treat palm oil mill effluent to extract biogas. After purification, biogas can substitute for natural gas for use at factories. Anaerobic treatment of palm oil mill effluent, practiced in Malaysia and Indonesia, results in domination of Methanosaeta concilii. It plays an important role in methane production from acetate and the optimum condition for its growth should be considered to harvest biogas as renewable fuel.[58]
Malayan folkculture
Since the days when the 'guineesis' was first introduced by the British, Indian laborers were brought in to work the estates. It was there that Hindu beliefs mixed with the local Malay culture and started the usage of palm seeds by traditional healers suffixed with tok 'bomoh' or 'pawang' in the local language. It was found that every bunch of palm fruit usually bears a single 'illustrious' seed which looks like a shiny black pearl called 'sbatmi' in Tamil and 'shakti' in Malay. These are used as accessories by the 'bomoh' and 'pawang' in the mixed ritual for peace with nature as these are believed to contain mystical healing properties, and those wearing it are blessed by nature.Modern usage has seen more common people keeping these as a charm/fashion item to feel at peace, owing to its use by celebrities. It must be noted that all palm seeds contain acid and these sbatmi are no different and should be handled with care. Sbatmi lost some popularity when it was used in a grisly ritual by Mona Fandey in 1993.
See also
- Attalea maripa (American oil palm)
- Energy and the environment