Friday, 29 June 2018




[Book review] Living days and nights in the forest

Tuesday, 19 June 2018




Impacts


India’s forests turning brown

,  19.06.18 
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http://indiaclimatedialogue.net/2018/06/19/indias-forests-are-turning-from-green-to-brown/
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The core forests across the country, including those that are protected, are turning from green to brown, a worrying phenomenon that scientists say is due to more than seasonal variations

Forests are no longer remaining green in India (Photo by Sathish Kumar Periyasamy)
As much as 4.6 million hectares of forests in India are browning, according to a new study by the Hyderabad-based National Remote Sensing Centre (NRSC) of the Indian Space Research Organisation.
The NRSC measured these changes in colour in 14 types of forest — from wet evergreen to thorn — between 2001 and 2014. It employed the Normalised Difference Vegetation Index (NDVI), a simple graphical indicator that can be used to analyse remote sensing measurements from a space platform, and assess whether the target being observed contains live green vegetation or not.
“Significant negative changes in the seasonal greenness were found to be highest over tropical moist deciduous forest (20,67,350 ha) followed by tropical dry deciduous (14,07,730 ha) and tropical wet evergreen (5,77,430 ha),” the study says. The seasonal greenness of mangrove cover has also declined by 15%, mainly in the Sundarbans in West Bengal.
For the first time, the NRSC used satellite data to monitor such changes. The study of cyclic and seasonal natural phenomena in relation to climate and plant life can throw light on the process of forest growth and decline.
Hotspots in danger
Worryingly, the study also found that among the hotspots where forests have been turning brown were wildlife sanctuaries, which are better protected. The Simlipal wildlife sanctuary in Odisha was the worst off, with 48,600 ha, followed by the Rajaji National Park in Uttarakhand and Achanakmar sanctuary in Chhattisgarh.
“The present study demonstrated the capability of satellite observations to find out persistent changes in the highly dynamic parameter like forest greenness over decadal scale,” it said. “The study also reported large protected areas experiencing spatially coherent significant negative change of seasonal greenness. Hence, the results of the present study could be useful in prioritisation and planning of conservation measures of forests of India.”
The NRSC study follows others. In 2017, three scholars of South Asian origin in the US and Israel, including Kamal S. Bawa, published a study titled Widespread Climate Changes in the Himalayas and Associated Changes in Local Ecosystems. They studied the Himalayas across Pakistan, Nepal, Bhutan and north-western and north-eastern India, a 3,000 km arc, which covered 750,000 sq. km. The mountain chain provides water to 1.4 billion people.
They pointed out that despite the ecological significance of this chain, not much was known about actual changes in the two most critical climatic variables: temperature and rainfall. Nor was it known how changes in these parameters might impact ecosystems, including how periodic plant life cycle events are influenced by seasonal and inter-annual variations in climate.
By analysing temperature and rainfall data, and NDVI values from remotely sensed imagery, they reported significant changes in temperature, rainfall, and vegetation changes across the Himalayas between 1982 and 2006.
It was the first time that large-scale climatic and vegetation changes at the landscape level had been documented for the Himalayas. “The rate of warming in the Himalayas is greater than the global average, confirming that the Himalayas are among the regions most vulnerable to climate change,” they concluded.
Implications not discussed
Commenting on the NRSC study, Bawa from the University of Massachusetts, Boston and the Bangalore-based Ashoka Trust for Research in Ecology and the Environment (ATREE), told indiclimatedialogue.net, “I do think it is a significant piece of work but not a path-breaker. I am surprised that although the results are very important, the authors do not fully discuss the implications of their work.”
“There is no mention of the possible causes of the trends they observed. Nor do they mention the implications of their findings. I was surprised that the landmark work of Jagdish Krishnaswamy on the browning of the montane forest is not mentioned,” he said. “Since the authors do not tell us the possible causes of the trends they observed, I cannot say if the results are comparable to Krishnaswamy’s or to our work in the Himalayas.”
Bawa was awarded the Linnean Medal in Botany in London this May. He was recognised for his pioneering research on the evolution of tropical plants, tropical deforestation and for work on the biodiversity of forests in Central America, the Western Ghats and the Eastern Himalaya.
“It is apparent from the NRSC’s work along with various other recent studies that parts of South Asian forests have been drying up during the recent decade which is alarming from the forest conservation point of view,” Sangeeta Sarmah, from the Chinese Academy of Sciences in Beijing, told indiaclimatedialogue.net. “However, this work has not discussed the factors causing the browning of the Indian forests, which would have been more interesting to learn about. The study exposed substantial negative changes in forest core areas, which should be backed up by some ground observations, as it is a significant revelation. The authors also did not discuss the implications of their work. Some more in-depth researches are needed regarding vegetation dynamics and various drivers, specifically for this region, as many issues are poorly understood in this region.”
This February, Sarmah and two Chinese colleagues published a study titled “Satellite view of seasonal greenness trends and controls in South Asia. They chose South Asia because it was “one of the most remarkable regions for changing vegetation greenness, accompanying its major expansion of agricultural activities, especially irrigated farming. The influence of the monsoon climate on the seasonal trends and anomalies of vegetation greenness is poorly understood in this area.”
Vegetation activity
They used NDVI to investigate various changes in vegetation activity during the summer and winter monsoon seasons and among irrigated croplands, rain-fed croplands and natural vegetation areas between 1982 and 2013. Their most interesting findings were the striking differences of the greening/browning between seasons and among the land use and land cover changes. They also explored the climate and land use cover change as the drivers of the seasonal and long term NDVI variations over the study area.
“The winter monsoon contributed larger variability to the overall vegetation changes in South Asia, which is the major finding of this study,” they concluded. “The increased productivity over irrigated croplands contributed to the greening of South Asia during the winter monsoon season. Meanwhile, significant browning occurred in the Western Ghats, northeastern India and the Himalayan foothills since 2000, and changes were observed during the same season.”
In 2013, Jagdish Krishnaswamy, also from ATREE, was the lead author of a paper titled Consistent response of vegetation dynamics to recent climate change in tropical mountain regions, which found that global climate change has emerged as a major driver of ecosystem change. The authors chose 47 Protected Areas (PAs) with elevations 1,000 metres above mean sea level in five continental regions in Africa, Central America, South America, South Asia, and Southeast Asia.
They analysed decadal-scale trends and seasonal cycles of vegetation greenness, using monthly time series of satellite greenness (NDVI) and climate data between 1982 and 2006 for these mountain protected areas in five biodiversity hotspots.
Strong browning trends
These showed mild greening trends, followed by a reversal to stronger browning trends around the mid-1990s. They found that temperatures were rising, but there was only a marginal change in rainfall.
“We found residual browning and greening trends in all regions, which indicate that factors other than temperature and precipitation also influence vegetation dynamics. Browning rates became progressively weaker with increase in elevation,” the study said. “Tropical mountain vegetation is considered sensitive to climatic changes, so these consistent vegetation responses across widespread regions indicate persistent global-scale effects of climate warming and associated moisture stresses.”
“The biggest weakness of the NRSC study is that the greening and browning are not analysed in relation to climate or other drivers; the attribution to any of these factors is difficult,” Krishnaswamy told indiaclimatedialogue.net. “Changes inside protected areas are assumed to be due to drivers such as climate variability or climate change, but in some protected areas, management practices or changes in fire regime have been known to influence greening and browning trends. The analyses of browning in some areas cannot be delimited from greening in other areas.”
“The role of climate change on browning is completely missing,” he said. “Over 30-40 years, for instance, the El Niño effect on vegetation in a specific area has to be examined.”
In 2010, B.R. Ramesh from the French Institute in Pondicherry, with other authors from France and India, published a study on Soil carbon stocks, deforestation and land-cover changes in the Western Ghats Biodiversity Hotspot. Habitat loss and organic carbon stock in soil variations linked to land-cover change were estimated over two decades in the most densely populated biodiversity hotspot in the world, to assess the possible influence of conservation practices on the protection of soil organic carbon (SOC).
For a study area of 88,484 sq. km, 70% of which lay inside the Western Ghats Biodiversity Hotspot, land-cover maps for 1977 and 1999 were built from various data sources, including remote sensing images and ecological forest maps.
Unexpectedly, their results showed that despite on-going deforestation at the rate of 29 sq. km a year, overall SOC stock was maintained. “But a closer examination of spatial differences showed that soil carbon losses in deforested areas were compensated by sequestration elsewhere, mainly in recent plantations and newly irrigated croplands,” the study said. “This suggests that more carbon sequestration in soils could be achieved in the future through appropriate wasteland management. It is also expected that increasing concerns about biodiversity loss will favour more conservation and reinforce the already prevailing protective measures, thus further maintaining carbon stocks.”

Friday, 15 June 2018







Indian supreme court verdict could spark new wave of sectarian riots between Hindus and Muslims

Leader of powerful Hindu organisation has threatened nationwide protests if long-awaited ruling "goes against Hindus' faith"


11th June 2018 10:21 GMT London

https://www.theartnewspaper.com/news/the-battle-for-india
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Description: Hindu nationalists mark the anniversary of the 1992 demolition of the Babri Masjid mosque at Ayodhya
Hindu nationalists mark the anniversary of the 1992 demolition of the Babri Masjid mosque at Ayodhya Photo: Deepak Gupta/Hindustan Times via Getty Images
The newly elected president of a powerful Hindu organisation in India has threatened nationwide protests if the supreme court, which is currently hearing a highly contested case over the ownership of a site claimed by both Hindus and Muslims, issues a ruling that “goes against Hindus’ faith”.
At the centre of the dispute is the pilgrimage town of Ayodhya in Uttar Pradesh, India’s most populous state and one of its poorest. Hindus believe that Ayodhya is the birthplace of their god Ram, as recounted in the Ramayana, the epic poem that tells his story. However, Muslims claim it as the site of a 16th-century mosque, the Babri Masjid, which was demolished by Hindu extremists in 1992, sparking riots that led to the death of more than 2,000 people throughout the country.
The case over the site’s ownership has been winding its way through the Indian legal system for decades and is now, finally, approaching its conclusion.  
Just days after his election in April as the leader of the Vishwa Hindu Parishad (World Hindu Association), Vishnu Kokje pre-empted the supreme court’s verdict. On a visit to Ayodhya, he called for a temple devoted to Ram to be built there. He reiterated the call last month and told reporters that if the supreme court ruled against them, “Hindus all over the country will start a movement to mount pressure on members of parliament to pass a law…that paves the way for the construction” of the temple.
The supreme court’s decision, expected in the next few months, could prompt a new wave of sectarian riots in a country that is increasingly hostile to its Muslim-minority population, which numbers 172 million people.
Religious texts as history
Since the election of the Hindu nationalist Bharatiya Janata Party (BJP) government four years ago, official and non-governmental Indian agencies have been charged with interpreting Hindu epics such as the Ramayana and other mythologies as historical truth. Monuments and archaeological sites are increasingly being used in this ideological battle. There have been numerous overt and covert attempts to promote a Hindu fundamentalist ideology known as Hindutva, particularly when it comes to history and archaeology, to prove that ancient Hindu temples were razed to erect mosques.
In March, the news agency Reuters revealed that the government of the prime minister, Narendra Modi, has set up a committee of archaeologists, geologists, Sanskrit scholars and bureaucrats tasked with rewriting Indian history to prove that today’s Hindus are directly descended from the country’s first inhabitants. The culture minister, Mahesh Sharma, told Reuters that he expects the committee’s findings to be taught in schools. The ultimate aim is “to shape the national identity” to match the government’s view that “India is a nation of and for Hindus”, Reuters reported.
Sharma believes that the committee’s findings will counter British and Indian historians’ assertion that people from Central Asia came to India around 4,000 years ago and influenced the country’s culture. “I worship Ramayana and I think it is a historical document. People who think it is fiction are absolutely wrong,” he said.
The Archaeological Survey of India (ASI) has also been charged with promoting the government’s Hindu nationalist agenda. In January 2017, the ASI held a meeting presided over by K.N. Dikshit, a former director-general of the organisation. He later said: “I have been asked to present a report that will help the government to rewrite certain aspects of ancient history.” According to the minutes of that meeting, which were cited by Reuters in its investigation in March, it was “essential to establish a correlation” between ancient Hindu texts and archaeological evidence to prove that Indian civilisation stretched back many thousands of years.
The ideological and logistical thrust of such a shift can be attributed to the Rashtriya Swayamsevak Sangh (National Volunteers’ Organisation), a Hindu right-wing militant organisation that has targeted every academic institution in the country. “The true colour of Indian history is saffron [which Hindutva followers favour], and to bring about cultural changes, we have to rewrite history,” the Rashtriya Swayamsevak Sangh told Reuters.
Description: Some Hindu nationalists claim that a Muslim emperor razed one of their temples to make way for the Taj Mahal
Some Hindu nationalists claim that a Muslim emperor razed one of their temples to make way for the Taj Mahal  Rayilkhan
“Blot on Indian culture”
Even the nation’s most famous monument, the Taj Mahal in Agra, has been embroiled in this battle to rewrite history. Some Hindu historians have claimed that the Unesco World Heritage site, built by the Mughal emperor Shah Jahan in the 17th century as a tribute to his late wife Mumtaz, was originally a Hindu temple known as Tejo Mahalaya. The claim was first made by the maverick historian Purushottam Oak, who published a book, Taj Mahal: the True Story, in 1989. He alleged that Shah Jahan had seized a temple dedicated to the Hindu god Shiva and converted it into a tomb for his wife.
Last October, a BJP member of the Uttar Pradesh government, Sangeet Som, called the Taj Mahal “a blot on Indian culture… he [Shah Jahan] wanted to wipe out Hindus. If these people are part of our history, then it is very sad, and we will change this history.” The controversial chief minister of Uttar Pradesh, Yogi Adityanath, who serves as the head priest of a Hindu temple in Gorakhpur, said the Taj Mahal does not “reflect Indian culture” and foreign dignitaries visiting the state have recently been given copies of the Bhagavad Gita, a Hindu text, rather than replicas of the famous monument. “Given a chance, we will install statues of [the Hindu deities]… Gauri, Ganesh and Nandi in every mosque,” Adityanath said three years ago at a meeting of the Vishwa Hindu Parishad.
An Uttar Pradesh tourism brochure, recently issued by the state government, omits the Taj Mahal from its list of sites to visit and instead includes the temple in Gorakhpur. It also outlines plans for new attractions, such as a tour of locations related to the Ramayana.
However, specialists from the ASI have dismissed claims that the Taj Mahal was built on the site of a Hindu temple. Last August, the ASI told a court in Agra that it had not found any traces of such a building at the site. The testimony was part of a hearing examining a petition by six Hindu lawyers who demanded the right to pray at the site, as Muslims are allowed to do at the mosque on the premises. The ASI told the court that a 2005 case over the ownership of the Taj Mahal is already being considered by the courts. (The completion of this is likely to take many more years.) Bhuvan Vikrama, the ASI’s superintending archaeologist in Agra, rejected the lawyers’ petition. “Our written statement called the claims ‘concocted’,” he told The Art Newspaper, adding that the case is proceeding despite the ASI’s protestations.
Following its public disavowal of the history of the Taj Mahal that is now being promoted by the highest levels of government, the ASI has itself come under fire for its administration of the monument. In May, the supreme court slammed it for not preventing the discolouration of the Taj Mahal caused by an infestation of insects breeding in the heavily polluted Yamuna river adjoining the site, as well as pollution from industries and vehicles in Agra. “This situation would not have arisen if the ASI [had] done its job. We are surprised by the way the ASI is defending itself. You [the central government] please consider if the ASI is needed there or not,” the judge said. The court was provoked by the failure of the ASI to put in place preventive measures after the first case to protect the Taj was filed 34 years ago.
Meanwhile, at Ayodhya, the ASI has conducted three surveys since Indian independence, the most recent being in 2003. In 1975, an ASI report found traces of continuous human habitation at the site dating back to the 13th century BC. It also found pillars and other structures that were of Hindu origin, but not any evidence of a temple or its destruction to make way for a mosque. Early in the 20th century, the British art historian E.B. Havell noted that the presence of Hindu or Buddhist traces of architecture in Islamic buildings could reflect the use of local artisans in their construction rather than any iconoclasm on the part of Muslim rulers.
Description: Hindu militants destroying the Babri Masjid mosque at Ayodhya in 1992
Hindu militants destroying the Babri Masjid mosque at Ayodhya in 1992 Photo: Reuters/Sunil Malhotra
Sectarian flashpoint
In 2003, excavations were ordered by an court in Allahabad that was hearing a case filed by Hindus and Muslims after the destruction of the Babri Masjid mosque—the same case that has now reached the supreme court. An archaeological team under Buddha Mani, who later retired as an ASI additional director-general, found remnants of a large temple under the mosque and continuity of use from the tenth to the 16th centuries. The structure had remains with “distinctive features associated with temples of north India”, the team reported.
However, other archaeologists criticised the team’s conclusions on technical grounds. In 2003, an earlier BJP coalition governed India, and the ASI is a government agency overseen by the Human Resource Development ministry. In 2003, this ministry was led by Murli Manohar Joshi, who himself stood accused of inciting zealots to demolish the Babri Masjid mosque in 1992. The Allahabad court later directed the ASI to replace Mani as leader of the excavation team, which it did.
The supreme court is now charged with adjudicating on the title deeds for the site of the mosque, and will not examine the location’s antiquity. Whatever the decision, it will have huge ramifications for Hindus and Muslims alike.
Appeared in The Art Newspaper, 302 June 2018



Friday, 1 June 2018








S

Mitigation

Upturned umbrella catches sunshine and rain

,  01.06.18 
http://indiaclimatedialogue.net/2018/06/01/upturned-umbrella-catches-sunshine-and-rain/

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An innovative product developed by a Mumbai entrepreneur duo not only converts sunlight into electricity but also harvests rainwater and provides shade

The upturned umbrellas installed at a car park in Pune (Photo by ThinkPhi)
Sometimes the simplest ideas are the most effective. This seems true of the inverted or upturned umbrella that a Mumbai clean-tech start-up has devised to both store potable water and generate solar energy.
Also known as ulta chaata colloquially, the USP of the device invented by ThinkPhi in 2015 is that it has multiple uses and isn’t just a standalone product. Its base model, 1080W, is touted as “the world’s most advanced shading structure…the first-of-its kind shade with integrated rainwater harvesting and solar powered lighting”.
The founders, Samit Choksi and his wife, Priya Vakil, who had worked abroad for several years, found it strange the two basic requirements – solar energy and drinking water ­– were easy to provide technologically, but no one had thought of combining both in a single device, which is particularly suitable for any tropical developing country.
This model comes in two sizes – 4m by 4m or 5m by 5m – and stands 2.6 m or 8.5 ft high. It weighs 100kg and 120 kg and can withstand winds up to 140 kmph. The structure has a warranty of 15 years, while the electrical components have warranty for five years.
“It is unique in the world. We have not come across anyone who competes with us,” Rajesh Das of ThinkPhi told indiaclimatedialogue.net. “The canopy is an easy, three-in-one concept that delivers potable water, solar energy and shade. We have patented the design and filed for patents in India too.”
The structure is made of stainless steel and the canopy is of a synthetic coated membrane. It weighs, depending on the model, a minimum of 100 kg.
There are three generic models at present, with the third, 1080XL, under development. They are capable of modular development with a membrane that joins one unit to another, thereby becoming flexible enough to provide cover for customised needs.
“We have hi-fi clients like the Nagpur Metro, where we will be providing walkways from the station for passengers to approach the auto or taxi stands. These will also protect them from the rain and sun,” said Das. “Units can be tailor-made even for the platforms.”
Green and renewable
“It’s a question of compliance: it is green and renewable,” Das said, referring to the widespread search of late to find ways and means of cutting one’s carbon footprint.
ThinkPhi has sold some 400 units so far. Unlike many other renewable energy devices, particularly with regard with wind, the umbrella has little installation costs and is basically a plug-and-play device.
For large infrastructure companies, the top of the line 1080XL can go up to 20m x 20m. The National Highway Authority of India (NHAI) is considering installing these at toll plazas; the existing covering structures are merely “idle sheets”. The cost can go up to INR 8 million, depending on the size and energy output.

The umbrellas are capable of providing lighting in the night (Photo by ThinkPhi)
Similarly, the Airports Authority of India, as well as the private airport operators GMR and GVK, and the new Navi Mumbai airport are potential customers.
The XL (extra-large) version for infrastructure can vary from location to location, depending on different environments. ThinkPhi is now in some 60 locations around the country.
The umbrellas can process 150,000 litres of water during the monsoon, which is purified to make it potable. In the dry season, which is eight to nine months in the year, the solar cells in the base model 1080W have a capacity of 1.5 kW on a single charge, rather like a standalone rooftop solar unit, not connected to the grid. The XL is a superstructure which has the capacity of 40 kW on a single charge and can filter over 1 million litres of rainwater. The power is stored in a battery within the device which can power it as well as service nearby facilities.
The solar power lights up the umbrella at night but can also charge mobiles and even electronic vehicles. In large installations, it has the potential of feeding excess electricity to the grid which will defray the cost of the device to an extent.
Smart umbrella
The “brain” of the smart umbrella used to be a central operating unit called a Phi-box. There is now in prototype a remote monitoring box for the 1080E and 1080E+ where you can track water, energy, and a list of other environment pollutants in the microclimate.
The water is filtered in the mast at two levels. The first employs carbon filtration, where active carbon removes impurities. This lowers turbidity and improves clearness to World Health Organisation potable standards.
Naren Kolary of Think-phi describes the product as its “bread and butter device” since it is an alternative method of providing shade, so essential at a number of public and private spaces which are in the open, like toll plazas.
“Solar has the limitation of space,” he told indiaclimatedialogue.net, referring to the large area that a large-capacity solar power plant needs to erect its panels. “Space is at a premium so that solar power only makes sense in the right location.” The umbrella, on the other hand, is versatile since it can be erected at several locations where it performs multiple functions.
The XL model has a lithium battery to store power and provides self-lighting for the device. This can easily charge mobile phones and laptops. To charge electric vehicles, considering that the government is banning petroleum-based fuels for cars from 2030, however, requires a bigger installation like at car parks.
Retrofitting
“One can find the right application in urban and semi-urban areas,” Kolary said. What is more, the device can be retrofitted into an existing structure or space. “In India, green technology for industrial use is dull and has a zero-design aspect to it,” Samit Choksi told Tech In Asia, a tech start-up website. “Companies spend money on green technology, but it is not visible. Solar, for instance, is a norm now, but you don’t ‘see’ it. Customers and employees will not climb onto the roof to see the solar panels a company has installed!”
One customer is Mahindra & Mahindra’s automotive division in Kandivali, Mumbai, which was given one 5 m x 5 m umbrella on a complimentary basis in 2016 to help their building get certified by the Indian Green Building Council.
According to Choksi, a Mahindra automobiles factory elsewhere “had installed solar, but it was ‘invisible.’ Employees, suppliers, customers were not fully aware of the installation and Mahindra’s investments in environmental technologies.”
“If you approach a company to sell solar, you will see at least 13 competitive quotes in front of you. It tells you the state of the industry and how innovation is non-existent. For India to be known as a clean tech innovator, we need to support companies that do not follow the herd.”
Rajan Joshi of Uniphos Envirotronic Pvt Ltd, a division of United Phosphorus crop chemical company, told indiaclimatedialogue.net: “We have installed 20 5mX5m canopies earlier this year at our factory in Mahuli, near Vapi, on the side of a highway for INR 4-500,000 each.” The company is one of the leading manufacturers of gas detection equipment.
The umbrellas are employed as a cark park for employees: each can accommodate eight cars or 12 two-wheelers. “The solar panels provide local lighting; we haven’t started net metering yet,” he said.
“We are in the environment business and the devices not only look good but make our employees feel good and motivated,” he added.
Chanchal Mertia of Mahindra in Kandivali told indiaclimatedialogue.net: “The device was customised to provide benches for sitting below. We wanted to promote a culture of working in the open. The solar panels provided charging points for laptops. It was initially an attraction because the weather is good between November and February. There was a sump to carry the rain to our rainwater harvesting system. The company plans to go in for some more umbrellas to cover lawns around the building.”