Scientists consider the possibility of adding aerosols or modifying clouds to slow

Scientists consider the possibility of adding aerosols or modifying clouds to slow

first_img Governments send representatives to climate meetings hoping to establish a consensus regarding carbon emission reductions, and the citizens of the world debate the source or even reality of global warming and what ought to be done about it. Yet the planet continues to warm. Scientists around the globe are convinced that unless something is done soon, the planet could become a miserable place, or worse, we could cause our own extinction. While some progress has been made in limiting carbon emissions, most would agree such efforts are falling short. For that reason, some scientists have begun looking at other ways to prevent catastrophe. Two of the most debated are aerosol injection and cloud seeding.The idea behind injecting aerosols into the atmosphere, as Niemeier and Tilmes point out, is to mimic the cooling that occurs when volcanoes erupt. Along with smoke, volcanoes also emit a lot of sulfur, which is why scientists suggest we do the same artificially. But that might be easier said than done, Niemeier and Tilmes note, because it would involve replicating an eruption the size of Mount Pinatubo every day for approximately the next century and a half.And there are problems with cloud seeding, too, which might be done to disperse cirrus clouds, preventing them from trapping heat—the main problem is lack of precision; doing it wrong could lead to more warming, for example.For these reasons and many more, Pasztor, Scharf and Schmidt suggest taking a very serious look at how to prevent one country, group or even a wealthy individual from striking out on their own with such approaches. Adding a governing body to the equation, they suggest, could prevent these scenarios. More information: Ulrike Lohmann et al. A cirrus cloud climate dial?, Science (2017). DOI: 10.1126/science.aan3325 Ulrike Niemeier et al. Sulfur injections for a cooler planet, Science (2017). DOI: 10.1126/science.aan3317 Janos Pasztor et al. How to govern geoengineering?, Science (2017). DOI: 10.1126/science.aan6794 (Phys.org)—Scientists looking at alternative approaches to staving off global warming have published two Perspective pieces in the journal Science. In the first, Ulrike Niemeier and Simone Tilmes with the Max Planck Institute and the National Center for Atmospheric Research in the U.S., respectively, address the possibility of injecting aerosols into the atmosphere as a means to limit heat passing through. In the second, Niemeier has paired up with Blaž Gasparini with the Institute of Atmospheric and Climate Science in Switzerland to look at the issues involved with attempting to disperse clouds that prevent heat in the atmosphere from escaping back into space. In an editorial in the same journal issue, Janos Pasztor, Cynthia Scharf and Kai-Uwe Schmidt consider how we might govern geoengineering attempts to prevent a reckless few from possibly destroying the planet they are trying to save. Citation: Scientists consider the possibility of adding aerosols or modifying clouds to slow global warming (2017, July 21) retrieved 18 August 2019 from https://phys.org/news/2017-07-scientists-possibility-adding-aerosols-clouds.html Explore further © 2017 Phys.orgcenter_img Journal information: Science Models show injecting aerosols into the atmosphere to prevent hurricanes possibly feasible Credit: CC0 Public Domain This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

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Delhi Tourism launches Hindi Website

Delhi Tourism launches Hindi Website

first_imgIn order to reach out to the masses and to promote tourism, Delhi Tourism has launched a dedicated Hindi version of the official web portal of DTTDC. The website was launched by  G.G Saxena, MD & CEO, DTTDC in the presence of other senior officials of Delhi Tourism.The launch of the Hindi website is another step forward towards making Delhi a tourist friendly destination. The sole purpose of launching this website is to attract more domestic tourists from across the country.  Also Read – ‘Playing Jojo was emotionally exhausting’The website is developed in Unicode encoding so that it can be seamlessly viewed in all the computers. It is created by IT Division, DTTDC through Centre for Development of Advanced Computing (CDAC).  Detailed information regarding tourist places, seasonal tours, city sightseeing, transport, accommodation, e– booking, bed and breakfast accommodations, eateries etc are available in the Hindi version of the website. Further a website with list of properties empanelled with bed and breakfast scheme of the tourism department. This B&B website will facilitate to the national/international tourists seeking homely accommodation in Delhi. Also Read – Leslie doing new comedy special with NetflixThe idea behind the Hindi website is to promote Delhi as a tourist destination and is an endeavor of an aggressive marketing plan to promote Delhi. The Hindi website is expected to enhance domestic tourist inflow and allow people to enjoy and get information about Delhi in their preferred language. Delhi Tourism is seamlessly working towards promoting Delhi as a tourist friendly destination and this initiative is yet, another milestone.last_img read more

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Art in schools get a pat on the back

Art in schools get a pat on the back

first_imgIf anyone thought that the talented artists could only be found in the art galleries – they could not be more wrong! The schools across the Capital are churning out brilliant artworks by not only students – but teachers as well.Here’s another feather in the cap for Chiranjiv Bharati School (Palam Vihar). Biplav Rej of Chiranjiv Bharati School-Palam Vihar (Art Department) was felicitated and awarded the prestigious Delhi State Award for his Scratch paintings in a glittering function on 19 September.Celebrating the works of the artist were a host of dignitaries and chief minister of Delhi Sheila Dikshit. The award was presented to him by Dikshit at Delhi Sachivalaya Auditorium. Rej received a shawl, certificate and a cheque for Rs.25000. The function was well attended by other artists as well.last_img read more

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Another brick in the art wall

Another brick in the art wall

first_imgDelhi has no dearth of events to please the art lovers of the Capital and here’s another one. Art Laureate presents its summer collection of beautiful art pieces titled Art Beyond Walls made-up from kitsch art format. Bright colors and visual appeal characterize the kitsch artwork. Being high on originality, every piece will make a statement and is a topic of conversation. The kitsch collection is an interesting mix of objects.There are items of furniture, kitchen utilities like kettles and trays, and decorative pieces like statues, fish, elephants, chests, vases, photo frames, jewellery boxes etc. Also Read – ‘Playing Jojo was emotionally exhausting’Going beyond walls, the artistes and designers have converted ordinary utilitarian products into master pieces. Art connoisseurs are interested in works they have not seen or heard of before – they want something new and this is where the quirky and kitschy works fill the void. Each piece of Art Beyond Walls collection tells a story. The chair is a garden come alive complete with a pair of peacocks; the tray and kettle talk of love and friendship; the boxes are auspicious with their mantras and Ganeshas; the elephant is a perfect fit at the front door; the stool is smart and useful; the fish encompasses the whole universe with the artwork including the sun, the moon, the stars, plants and of course water. Also Read – Leslie doing new comedy special with NetflixThe collection of Art Beyond Walls includes beautiful, vibrant laughing Buddhas and Bal Ganeshas – the colours and the style of these figurines emanate joy and peace. The entire collection is unique, aesthetic, contemporary and stunning. Art Beyond Walls is an art show presented by Sangeeta Berera and Isha Singh, who have been associated with the art world for over nine years. They have worked with artistes in all brackets – from upcoming to masters, both the ladies bring with them a wealth of artistic experience. So head over and check it out for yourselves.last_img read more

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Centre should take responsibility to bring down fuel prices Mamata

Centre should take responsibility to bring down fuel prices Mamata

first_imgKolkata: Chief Minister Mamata Banerjee on Thursday said the Centre should look into the issue of surging fuel prices not from a political angle but from a commoner’s point of view.The everyday rise in petrol and diesel prices is causing severe inconvenience to the common people, Banerjee said.Addressing a press conference after reaching Santiniketan on Thursday evening, she said: “All the political parties are urged to organise protest rallies against the steep rise in petrol and diesel prices.” Also Read – Heavy rain hits traffic, flightsShe is in Santiniketan to be a part of the Visva-Bharati convocation, where Prime Minister Narendra Modi and his Bangladesh counterpart Sheikh Hasina will also be present.Banerjee, who attended the swearing-in ceremony of JD(S) leader H D Kumaraswamy in Bengaluru on Wednesday, had a discussion over the issues with chiefs of most of the anti-BJP political parties who were also present during the oath-taking ceremony.Stating that there is need to initiate nationwide protests against the hike in petrol and diesel prices, Banerjee said: “I requested all to build up a protest against it. I spoke to Sonia Gandhi, Andhra Pradesh Chief Minister Chandrababu Naidu and former Chief Ministers of Uttar Pradesh Mayawati and Akhilesh Yadav in this connection. The discussion took place over tea after the oath-taking ceremony of HD Kumaraswamy.” Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedThis comes at the time when the Chief Minister has given a call for a one-is-to-one fight against the BJP in the 2019 general elections with all anti-BJP parties coming together to form a Federal Front.She said that it was the issue related to hike in prices of petrol and diesel for which her party had withdrawn support from the UPA government.When asked whether she would raise the issue with Prime Minister Narendra Modi during the convocation programme on Friday, she replied that it would not be the correct platform to do so. “But the issue will be raised if there is any opportunity for the same,” she said. Banerjee said petrol and diesel prices are at an all-time high and it would lead to harassment of common people as prices of essential goods would increase as well. “The prices of petrol and diesel are sky high and it will leave an adverse effect on the farmers,” she said, adding that her political party has already given a call for a statewide protest rally. There will be a rally in Kolkata on Friday and the statewide protest will take place on Saturday.last_img read more

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Kabuliwala comes calling

Kabuliwala comes calling

first_imgNobel laureate Rabindranath Tagore’s timeless story Kabuliwala resonates perfectly with the Afghan community living in India. And capturing these connections is an ongoing photo exhibition in the capital that traces the life of Afghans living in Kolkata.Documenting the lives of around 5,000 Afghan families living in Kolkata in the exhibition From Kabul to Kolkata: Of Belonging, Memories and Identity two journalists embarked on a three-year journey to tell the story of a century of social transformation within the community.  It opened Saturday at Siddhartha Hall and is on till April 13. Moska Najib and Nazes Afroz have captured the stories of this secluded and little-known settlement in the present time through photographs. Also Read – ‘Playing Jojo was emotionally exhausting’“Being away from my homeland, I have been always drawn to the themes of identity and new belonging. This inspired me to photograph one of the oldest settled Afghan communities in India in modern times,” said Najib, an Afghan who has lived in India for most of her life. Najib hopes that the photographs on display will allow viewers to experience the problems of preserving an identity and rebuilding a home in a new space. “I wanted to explore how the community has held onto its culture and identity through the 100 years. And by understanding their ways of connection, I, too, wanted to connect with my own country – Afghanistan,” she added. Until a few decades ago, real Kabuliwalas were a common sight on the streets of Kolkata, as in most cities of north and central India; today stereotypes and standard attributes have formed an ambiguous image of these people. Also Read – Leslie doing new comedy special with Netflix“Kolkata had amazing diversity and it had made me what I am today. But for the last few decades I felt that this diversity was fading fast, which was disturbing me. So by doing this project, I had an opportunity to capture at least one slice of the diversity of this city and in a way it is a tribute,” Afroz, a journalist from Kolkata said. The series will connect viewers to the themes of human bonding and touch on the issues of loss of identity and a new sense of belonging.last_img read more

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Nijoshree to fulfill lowermiddle class housing dreams Mamata

Nijoshree to fulfill lowermiddle class housing dreams Mamata

first_imgKolkata: The Mamata Banerjee government has introduced “Nijoshree” project to help people from the lower-middle class groups to get their own dream homes at a minimum price.One with income below Rs 15,000 per month and Rs 30,000 per month will be eligible to get one BHK and two BHK flats respectively. A target of constructing 50,000 flats has been set under the project for which the state Housing department is the nodal agency.A one BHK flat will be of 378 sq feet carpet area and it would cost Rs 7.28 lakh while one has to pay Rs 9.26 lakh for a two BHK flat of 559 sq feet carpet area. Also Read – Heavy rain hits traffic, flightsFirhad Hakim, the state Urban Development and Municipal Affairs minister, announced the project at Nabanna on Wednesday after the Cabinet meeting. He said: “There are projects to extend support to people from the BPL group to get their own homes. But it came to our notice that there was nothing as such for the lower middle-class people. Keeping this in mind, Chief Minister Mamata Banerjee has decided to introduce “Nijoshree” under which flats will be allotted to people from the said group. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedHe said that a target has been set to give shape to the project within the next two years. “We have already identified some plots where construction of the building will begin soon. At the same time all the concerned departments, development authorities, municipalities, Corporations and panchayats have also been directed to identify plots for the project,” he said.The concerned departments, development authorities and civic bodies can also construct the buildings under the project on the lands they identify. But it will get distributed by the state Housing department. Each of the buildings will be five-storeyed ones. But there will be no elevators considering that it will increase the maintenance cost. One interested to get a flat in the five-storeyed buildings will have to apply for a flat through a website that the state Housing department will be launching soon. Subsequently, there will be a lottery to allot the flats. Assistance will also be provided to ensure bank loans for purchase. A person cannot apply for the second time if once a flat gets allotted against his or her name.last_img read more

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Bengaluru bound IndiGo flight returns to airport due to crack in windshield

Bengaluru bound IndiGo flight returns to airport due to crack in windshield

first_imgKolkata: An IndiGo flight bound for Bengaluru was forced to return back to the city airport soon after take off, due to a windshield crack on Sunday morning.The aircraft was carrying 178 passengers, all of whom were safe, confirmed an official of the Airports Authority of India (AAI) at Kolkata.According to a spokesperson of the AAI, the flight IndiGo 6E345, headed for Bengaluru, took off from Netaji Subhas Chandra Bose International Airport at around 10:15 am. However, at 10:34 am, it returned to Kolkata Airport after a crack was witnessed on the windshield.According to sources, Indigo claimed that following severe weather conditions at Kolkata on Sunday morning, the aircraft suffered a minor damage on the outer surface of windshield. The pilot decided to return back following the normal operating procedure. The passengers were accommodated in another Indigo flight.”The damaged windshield is undergoing replacement,” a source in the city airport said.last_img read more

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3 trains to bring back Kolkattans stuck in Kerala

3 trains to bring back Kolkattans stuck in Kerala

first_imgKolkata: The state government is taking all the necessary steps to ensure the safe return of those hailing from Bengal and are stuck in flood-hit Kerala. A large number will reach Kolkata in three trains on Monday night. Chief Minister Mamata Banerjee said at Nabanna: “Three trains are coming from Kerala. Necessary measures would be taken so that they can reach their houses safely after reaching Kolkata. There will be arrangements for special buses in which they will be taken home.”Firhad Hakim, the state Urban Development minister, Rajib Banerjee, the state Backward Class Welfare minister and Arup Roy, the state Co-operation minister, will be receiving those who will reach Kolkata in three trains.last_img

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Police attach Nima Tamangs properties following court order

Police attach Nima Tamangs properties following court order

first_imgDarjeeling: Acting on a Court order, Kalimpong police on Thursday attached immovable and movable properties of Nima Tamang, a former GTA member, Kalimpong. Tamang, who is implicated in a number of cases is absconding.A large police contingent arrived at Tamang’s residence located at Seed Farm, Kalimpong at around 9 am on Thursday and then started the process of attachment.After movable items — including furnitures, utensils appliances were carried away in trucks, the house was vacated and sealed. Nima’s wife along with his son and daughter used to reside there.Nima, a close confidant of Gorkha leader Bimal Gurung, was a former Gorkhaland Territorial Administration Member of 34 number constituency in Kalimpong. He was implicated in a number of cases in the agitation period last year. He has been charged under Sections 147, 148, 149, 447, 325,326 and 307 of Indian Penal Code. A proclamation order had been issued by the Additional District and Sessions Judge, Kalimpong on July 30 this year ordering Nima Tamang to appear in court at 10 am on September 10.As Tamang failed to make an appearance, the court declared him an absconder and ordered for the attachment of his property.last_img read more

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