Tuesday, 19 December 2017


Impacts


Climate change will cause more cyclones in Arabian Sea

,  20.12.17 


http://indiaclimatedialogue.net/2017/12/20/climate-change-will-cause-more-cyclones-on-arabian-sea/
0000
Scientists say that Cyclone Ockhi, which ravaged large parts of India’s west coast in December, indicates that such severe storms are increasing in the Arabian Sea due to climate change
Cyclone Ockhi caused extensive damage in Kanyakumari (Photo by Ramakrishna Mission)
“We predicted that intense cyclones will increase during the late monsoon season in the Arabian Sea due to anthropogenic (manmade) forcing,” says Hiroyuki Murakami, a Princeton University scientist who is probably the foremost authority on the likelihood of cyclones rising in the Arabian Sea.
“Cyclone Ockhi is in line with my recent paper published in Nature Climate Change. According to the India Meteorological Department (IMD), it was a Very Severe Cyclonic Storm, but very close to an Extremely Severe Cyclonic Storm (ESCS),” Murakami told indiaclimatedialogue.net.
Murakami and his co-authors noted that in 2014 and 2015, tropical storms — defined by the World Meteorological Organisation as gaining maximum speeds exceeding 46 metres per second, or 165.6 km per hour — were first observed over the Arabian Sea and caused extensive damage.
In 2014, there was Cyclone Nilofar, the first ESCS in the post-monsoon season from October to December. It caused flash floods in northeast Oman, killing four people. In the following year, two more storms of the same category — Cyclone Chapala and Cyclone Megh — were observed back-to-back in the same season.
With wind speeds approximating those of a hurricane, both made landfall in Yemen, killing 26 people and displacing thousands. “This was the first instance that more than one ESCS was observed within one year in the Arabian Sea,” the authors noted in the paper published in the Nature Climate Change journal. It was this anomaly that prompted them to conduct their study.
Using a high-resolution global model that accurately simulates the climatological distribution of ESCSs, the authors show that manmade forcing “has likely increased the probability of late-season ECSCs occurring in the Arabian Sea since the preindustrial era.”
Rising risks
However, the timing of such late-season storms in 2014 and 2015 was random and not predictable.  Continued manmade forcing will further amplify the risk of cyclones in the Arabian Sea, with corresponding socio-economic implications, the researchers said. They cited another recent study, which showed that manmade black carbon particles and sulphate emissions might have increased the intensity of storms over this sea.
More cyclonic storms could make landfall on the west coast of India facing the Arabian Sea (Photo by Bishnu Sarangi)
Among other causes, one possibility is that the Arabian Sea surface becomes warmer than other seas during this period. Second, due to the interplay of global warming, climate variability and weather changes, the winter northeast monsoon circulation has been weakening over the years.
“Murakami’s study does not give us a clue on how and why the cyclones are increasing. Is it due to increasing ocean temperatures, which can influence the potential intensity of a cyclone? However, Arabian Sea surface temperatures during November-December are generally conducive for cyclones, and increasing temperatures need not necessarily trigger cyclones,” Roxy Mathew Koll of Pune-based Indian Institute of Tropical Meteorology (IITM) and lead author of a 2015 study of Indian Ocean warming, told indiaclimatedialogue.net. “This means there are other important factors leading to the genesis of cyclones.”
“One important factor is the wind shear, or the change in direction and speed of the winds from bottom to the top of the atmosphere. Generally, this wind shear is relatively strong in the Arabian Sea compared to the Bay of Bengal. That is, while the winds are generally in the same direction throughout the atmospheric column for Bay of Bengal, they are in the opposite direction for the Arabian Sea,” Koll said. “Opposing winds prevent cyclones from developing vertically, which is why the number of cyclones are fewer in the Arabian Sea.”
“This is what Murakami says is changing. They show that the wind shear is weakening in the Arabian Sea with increased carbon dioxide in the atmosphere. They link the change in wind shear to a weakening of the north-easterly monsoon winds,” said Koll. “However, we have not found any evidence for a weakening north-easterly monsoon. Hence, we need more research to connect all the missing links to explain the mechanism behind increasing Arabian Sea cyclones.”
“Regardless of the results, we can say that Arabian Sea is quickly responding to climate change signals — warming rapidly and driving more and more cyclones and extreme rainfall events,” he said. “We still do not know how much of a role climate change has played on Ockhi. It is important to note that its genesis was in the Bay of Bengal as a depression, and not in the Arabian Sea. It was the upper level easterly winds which steered the depression from the Bay of Bengal to the Arabian Sea.”
“Meanwhile, the sea surface temperatures and the wind shear in the Arabian Sea were conducive for the depression to intensify as a moderate cyclone. It is also to be noted that a La Niña (a weather pattern in the Pacific Ocean that is less damaging than El Niño) event is unfolding over the Pacific. Studies have shown that La Niña conditions change the atmospheric circulation over the north Indian Ocean and make them favourable for cyclogenesis.”
Adam Sobel, a Columbia University meteorologist and author of Storm Surge: Hurricane Sandy, Our Changing Climate, and Extreme Weather of the Past and Future , who is studying the likelihood of a cyclone hitting Mumbai, said: “We have made good progress on the assessment of the probability that Mumbai could be hit by a cyclone. The big picture is what we already knew — the probability of a severe cyclone landfall here is small, but definitely not zero. We just have done a little more work to quantify that. And hopefully Ockhi will help people to understand that conclusion a bit better.”
Close shave
Mumbai had a close shave with Cyclone Ockhi. In a knee-jerk reaction, the state government declared a school holiday on December 6, although better forecasting would have informed it that the storm had bypassed Mumbai and was weakening even when it landed in Gujarat.
However, Sobel explained the nuances of such a situation. “Weather forecasters feel a great sense of responsibility. They are afraid to cry wolf,” he told indiaclimatedialogue.net. “The science is always ahead of forecasters; they can do what couldn’t be done five years ago. The computers are more powerful. However, the forecasters say, we have to study this for a while.”
“Ockhi was exactly the worst case because it started very close to land. This is unusual. I happened to be in the Maldives in 2011 when this happened. Due to the lack of a forecast, many Sri Lankan fishermen were killed,” said Sobel. “The models are the same. Regarding Ockhi, the IITM had the forecast five days earlier. The IMD probably knew too; there may have been something in their weather forecast. When there’s a cyclone, forecasters in the US, as indeed the IMD, put out a whole lot of special products: there are track forecasts, warnings. Even in the US, the cyclone warnings may be in the fine print, whereas with a hurricane warning, they’re ringing the bell.”
Asked whether earlier warnings, given the improved technology nowadays, might lose fisher folk their livelihoods, but not their lives as with Ockhi, Sobel replied that it was something of a toss-up. If such early warnings didn’t materialise, it would cost the Met Department its credibility, and in the future, people might not heed its warnings seriously.
Because Cyclone Ockhi formed so close to the land, one couldn’t track it so far in advance. If one had a forecast a day ahead, it would at least save the fisher folk who were venturing out that day, though not the typical fleet in southern states which spends around ten days at sea.
However, the cyclone showed that Mumbai is indeed vulnerable to such storms. Gujarat has been hit by cyclones four times since the 1970s. This time, the track of Ockhi could have turned right and hit Mumbai. For some reason, they tend to go north. In New York, the turn that Hurricane Sandy took had never happened before, so it just goes to show that the unexpected can always occur.
Link with climate change
“When Murakami was in Japan four years ago, he was studying how Arabian Sea cyclones could be caused by climate change, and now he’s moved to Princeton,” Sobel noted. “They’ve got the world’s best model for predicting such cyclones. This shows not only that the risk is rising in the Arabian Sea but it already has increased due to climate change.”
“In the last decade or so, the activity in the Arabian Sea has been due to natural variability, but these researchers say that it has already increased since the early 20th century till now due to climate,” he told indiaclimatedialogue.net. “Furthermore, the big increase is specifically in this post-monsoon season. Most storms here go to the west and hit countries like Yemen; some go up and hit Pakistan.”
“If you see the four cyclones that hit Gujarat in the last 40 years, three of them occurred during the May-June monsoon, but one occurred in November. The big increase is in the post-monsoon now. Ockhi looks suspiciously consistent with their findings. It remains a rare event, but one which is possible.”
“Theirs is a high-resolution climate model,” he said. “Most models don’t represent cyclones very well because the pixels aren’t sharp enough. Princeton probably has the best model in the world for predicting climate and cyclones. Here the laws of physics are solved on the computer as accurately as you can. It’s the best we can do.”
Asked about the seeming mismatch between the amount of science that is being done on cyclones and the warnings, Sobel replied: “The mismatch is there, but most of the times it doesn’t matter as much as it does in this case. It originated so close to land that they couldn’t have really done a forecast. However, this artificial barrier — between predicting a cyclone and issuing a warning — doesn’t need to be there any more.”
The National Oceanic and Atmospheric Administration (NOAA) in the US observes that the Arabian Sea is at particular risk because the countries that surround it are heavily populated and cyclones there have nowhere to go except land.

Tuesday, 12 December 2017




Major problems of our time are all interconnected

http://www.indiatogether.org/major-problems-of-our-time-are-all-interconnected-environment

 

ENVIRONMENT / ECOLOGICAL ECONOMICS

Recently Darryl D’Monte interviewed the famous physicist Fritjof Capra at the annual meet of Greenaccord international environmental journalists in Italy. Here he reports on Capra’s separate remarks about the environment, along with quotes from his books and blogs. 13 December 2017 -
At the annual Greenaccord meeting of international environmental journalists in Florence and near it in Tuscany, Italy from November 2-5, Fritjof Capra was a major speaker on the theme: “Economy and Finance in a Carbon-Free Era”. He is renowned for his 1975 book, The Tao of Physics, which has sold over 1 million copies. In it, he as a physicist, likened the clash of subatomic particles to the dance of Shiva and drew a connection between Buddhism, Hinduism and modern physics. He is now Director of the Centre  of Ecoliteracy in Berkeley, California.
“The major problems of our time – energy, environment, rising income inequality and so on – cannot be understood in isolation,” he told the conference. “They are systemic issues, which means that they are all interconnected. Correspondingly, they need systemic solutions.
Description: http://www.indiatogether.org/uploads/picture/image/3325/Capra.jpg
Dr Fritjof Capra. Pic: Basso Cannarso
“As Pope Francis puts it [in his Encyclical, Laudato Si’, issued before the UN Paris climate meet in December 2015] our common home is falling into serious disrepair. This is evident from large-scale natural disasters, as well as social and even financial crises, cannot be handled in isolation. It cannot be emphasised enough that everything is interconnected.
“The fundamental dilemma underlying our global problems seems to be the illusion, embraced by our corporate and political leaders, that unlimited growth is possible on the planet. This has been underlined in several presentations at this conference in the first two days.”
Indeed, the US ecological economist Robert Costanza, now at the Australian National University, spoke on “Decarbonising Finance” and the need to curb the world’s “addiction to GDP growth” at the inauguration of the five-day conference. This could prove fatal, which isn’t far-fetched if one considers how the excessive exploitation of natural resources led to the collapse of the Mayan and Roman empires.
“Measure what we treasure” and not vice versa was his prescription. The era of neo-liberal economics began with the Regan-Thatcher Anglo-US regimes. Herman Daly, the well-known ecological economist, advocated therapy for GDP addiction, like one would for any other mental affliction. Three curatives are the implementation of the UN’s sustainable development goals; a redesign of several systems, not excluding the most toxic of all – financial; and an overhaul of the political process.
Mark Campanale, Founder and Executive Director of the Carbon Tracker Initiative, highlighted the risk of investing or, rather, staying invested, in the fossil fuel industry. To limit global warming to 2 degrees above pre-industrial levels, as the UN prescribes, it was necessary to limit CO concentrations to 450 ppm.
By 2040, coal demand needs to be 45 per cent below business as usual (BAU) levels, while oil and gas need to be 30 percent below BAU. If one called a halt to the burning of fossil fuels to keep the world from experiencing cataclysmic climate change, what would happen to those entities that are invested in it? They would simply be stranded.
By plotting the amount of fossil fuel reserves against investments in a country’s bourses, the stock exchanges of London, Sao Paulo, Moscow, Australia and Toronto all have an estimated 20-30 percent of their market capitalisation connected to fossil fuels. The New York exchange had 156 gigatonnes (Gt) of CO invested in it, of which oil comprised 112 Gt. London would account for 106 Gt, with oil comprising half. Russia was far and away the world’s fossil fuel behemoth with 253 Gt, of which coal accounted for 161 Gt. China had 67 Gt, mainly in coal, while India was a small blip with gas.
Bill McGibben, the environmentalist and founder of the movement 350.org headlined an article in Rolling Stone magazine five years ago: “Unburnable Carbon: are the Financial Markets  Carrying a Carbon Bubble?” He writes: “an easy and powerful  bit of arithmetical  analysis first published by financial analysts in the U.K. has been  making the rounds...(it) up-ends most of the  conventional political  thinking about climate change. And it allows us  to understand our  precarious position with .... simple numbers”.
As the Financial Times observed: “Of all the recent ideas climate change campaigners have come up with to convince the world to do more to curb global warming, none has been as potent as stranded fossil fuel assets”. Even the conservative Daily Telegraph in the UK stated that “in the fight against global warming, the real warriors wear suits and ties”, referring to stock exchange operators. It went on to say: “Environmentalists may not like it, but hard-headed businesses and banks are now our best bet against runaway climate change.”
Are fossil fuel companies betting on an uncertain future, asks Carbon Tracker?: 
  • BP is projecting a 24% increase in fossil fuel use by 2035
  • Exxon expects a 27% increase by 2040 
  • Shell’s ‘Current Outlook’  is 37%  to 2040
  • OPEC is clinging valiantly to 54% to 2040
Yet  companies are overstating energy demand, underestimating an increasing role for renewables and ignoring looming changes in energy.
Regulators are taking increasing notice of the risk. Mark Carney, Governor of the Bank of England  notes that the carbon budget of the globe, which allocates the remaining emissions space to countries,  renders the “vast majority of reserves ‘stranded’ –  oil, gas and coal that will be literally unburnable.” The abrupt transition to a low-carbon future is a “financial stability risk”.
Capra made a plea to distinguish between real and virtual wealth and not to measure well-being in millions of dollars. If one was worth $9.5 billion but was sick, alcoholic, with an obsession or addiction to power, that was far from a satisfactory situation.
As Ian Dunlop of the Climate Change Take Force in Australia cited, fossil fuels still comprised 85 percent of global energy consumption in 2016. Oil contributed 33 per cent, coal 28, gas 24, hydro 6.9, nuclear 4.5, and renewables a mere 3.8, so there is a very long way to go, despite all the euphoria about solar and, to a lesser extent, wind.
On December 7 it was reported that despite commitments to help address the climate crisis, the European Bank for Reconstruction and Development (EBRD) awarded fossil fuel projects €4.05 billion between 2010 and 2016 – more than double its support for renewable energy during the same period.
According to Bankwatch’s analysis, fossil fuel projects accounted for the largest share, 41 percent, of the EBRD’s €9.96 billion energy and natural resources portfolio in 2010-2016.
Capra referred to the irrational belief in perpetual  growth as the clash between  linear thinking and non-linear thinking in the biosphere, which constitutes the web of life. Excessive growth is fuelled by excessive consumption in a throw-away economy, generating waste and pollution and depleting the earth’s natural resources. These global problems are exacerbated by climate change caused by our reliance on fossil fuel energy.
In an article in September in the International Journal of Social Economics, Capra and Ove Jakobsen from the Centre for Ecological Economics and Ethics, Nordland University, Norway, write: “We suggest a new conceptual framework for economic theory and practice based on systemic principles of life. We refer to ecological economics using two meanings of the term ‘ecological’.
“Ecological economics refers to an economic system that is consistent with and honours the basic principles of ecology which, ultimately, are identical with what we call the systemic principles of life. In a broader sense ecological economics refers to economic theory and practice that see the economy as operating within, rather than dominating, the spheres of nature, society, and culture.”
They discuss “how these principles can be applied to design an ecological economic system that is life-enhancing at individual, social and ecological levels. We argue that ecological economics should give priority to activities that maximize the wellbeing of human and non-human beings, as well as of entire ecosystems, and that its central purpose should be to serve the life processes in social and ecological systems”.
Materialism and human greed are the defining motivations of global capitalism. Anthony Giddens argued 26 years ago that we had to look for an alternative worldview to the existing one, which pursues a course of self-destruction. As an example he claimed that “the pursuit of capitalist accumulation could not be carried out indefinitely since it is not self-sustaining in terms of resources”.
Description: http://www.indiatogether.org/images/related.jpg
·         My fossil fuels, your land
The two authors cite Alfred North Whitehead, the British philosopher best known for his work in the philosophy of science, and a co-author with Bertrand Russell, as saying that “a civilized society should exhibit the five qualities of truth, beauty, adventure, art, and peace”.
They discuss “how these principles can be applied to design an ecological economic system that is life-enhancing rather than life-destroying. The corresponding economic practices will differ depending on cultural and natural conditions, just as ecosystems are different depending on environmental conditions. However, the underlying principles are the same; they are universal systemic principles of life.”
“We should emphasize that the recognition of these principles is not restricted to science. Similar ideas can be found, in various schools of Buddhism, and in numerous indigenous cultures. Hence, the systems view of life and the philosophy of organism are unifying visions, uniting East and West, North and South.”
Darryl D'Monte
13 December 2017
Darryl D'Monte, former Resident Editor of The Times of India in Mumbai, is Chairperson of the Forum of Environmental Journalists of India and founder President of the International Federation of Environmental Journalists.

Monday, 11 December 2017