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Areas selected for smart city development are ‘heat islands’: Study

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Areas selected for smart city development are ‘heat islands’: Study

[vc_row][vc_column][vc_column_text]~By Dinesh C Sharma

Study covered 89 of 100 areas selected for smart city projects, says temperature could be 1 to 6 degrees higher than surrounding areas in these heat islands

New Delhi: The phenomenon of urban heat islands, in which concrete and built areas in cities experience higher temperatures than surrounding rural areas, may get accentuated with rapid urbanisation. This is the conclusion of a new study of urban areas selected for development of smart cities.

The study, which covered 89 of 100 areas selected for development of smart cities, has found that agriculture and irrigation are two dominant drivers of urban heat islands or UHI in India. In addition, significant presence of atmospheric aerosols – mainly pollutants – over urban areas can influence UHI.

Moisture from irrigation canals and agriculture fields plays a key role in keeping rural areas surrounding cities much cooler than urban areas, resulting in cities becoming heat islands. In a heat island, temperature could be 1 to 6 degrees higher than surrounding areas. Remote sensing data and climate modelling were used to evaluate UHI all over the country.

When the surrounding non-urban areas have no agriculture during summer, cities are actually relatively cooler during daytime. However, if the non-urban areas are under irrigated agriculture, cities are warmer than surroundings. This means UHI effect during day time is mainly driven by agriculture and irrigation. However, in the night-time, cities are significantly warmer than surroundings in both winter and summer seasons. Night-time urban heat is mainly driven by the amount of heat stored in buildings and other impervious surfaces.

Urban areas located in highly irrigated regions – Indo-Gangetic Plain and north-west India (Haryana and Punjab) – show UHI intensity of 3 to 5 degrees. During summer season (April and May), when air temperature is at the peak, land surface temperature becomes is higher than that of the post-monsoon season in absence of agricultural operations. Moreover, amount of moisture and vegetation in non-urban areas are also limited as crops are largely harvested by the end of March and soil moisture is depleted due to high atmospheric water demands, the study said.

“While urban areas have experienced increased number of heat waves and temperature extremes in recent past, urban heat island effect driven by rapid urbanization can further worsen extreme hot conditions in cities,” pointed out Dr Vimal Mishra, a scientist at the Water and Climate Lab of Indian Institute of Technology, Gandhinagar, which did the study. The results of the study appeared in the journal Scientific Reports.

The development of smart cities will result in rapid growth in urban infrastructure and population, leading to increases in UHI intensity. “Our results can provide policy insights for development of smart cities,” Mishra said. “Considering night-time heating which could be significant during heat waves, measures such as passive cooling should be used. Building materials that absorb less heat and are sustainable can reduce the amount of heating caused by stored heat.” The presence of water bodies and vegetation in cities can also help reduce additional night-time heating in urban heat islands.

The study team included Rahul Kumar and Vimal Mishra (IIT Gandhinagar); Jonathan Buzan and Matthew Huber (Purdue University, USA); Rohini Kumar (UFZ-Helmholtz Centre for Environmental Research, Leipzig, Germany ); and Drew Shindel (Duke University, USA).

(The article is from a syndicated feed provided by the India Science Wire)[/vc_column_text][/vc_column][/vc_row]

India News

Union Minister Nitin Gadkari says poor engineering, lack of accountabillity behind road accidents

Nitin Gadkari blames flawed road designs and lack of accountability for rising road accidents in India. He calls for improved safety measures and better planning in infrastructure projects.

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Union Minister Nitin Gadkari

Union Minister for Road Transport and Highways, Nitin Gadkari, has blamed faulty detailed project reports (DPRs) and flawed road designs for the increasing number of road accidents in India. Speaking at the Global Road Infratech Summit & Expo (GRIS), he underscored the lack of accountability in road construction and planning, calling for urgent reforms to improve road safety.

Engineering flaws behind rising accidents

Gadkari, known for his candid opinions, stated, “Most of the road accidents happen in the country due to small civil mistakes, faulty DPRs and nobody is held accountable.” He pointed out that poor-quality DPRs and defective planning have led to an alarming rise in road mishaps.

Expressing concern over India’s poor road signage and marking systems, Gadkari urged authorities to take lessons from countries such as Spain, Austria, and Switzerland, where road infrastructure is significantly better.

Call for new strategies and sustainable materials

The minister emphasized the importance of adopting newer technologies and sustainable, recyclable materials in road construction to enhance safety. He urged the road construction industry to devise better strategies for accident prevention.

Disturbing road accident statistics

India recorded a staggering 1,80,000 deaths due to road accidents in 2023, a number Gadkari deemed unacceptable. With road safety being a top priority, he reiterated the government’s commitment to reducing road accidents by 50% by 2030.

Industry voices stress on prioritizing safety

At the event, International Road Federation (IRF) president emeritus K K Kapila echoed Gadkari’s concerns, stating that safety should be integrated into every aspect of road design, construction, and management. He emphasized that initiatives like GRIS aim to move towards a future with zero road fatalities.

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India News

AI-generated video of miniature humans making Indian sweets goes viral with 16 million views

A viral AI-generated video shows tiny human figures crafting oversized Indian sweets in a creative reel that has captivated social media, amassing over 16 million views.

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AI-generated video of tiny humans making Indian sweets

Artificial Intelligence (AI) continues to redefine creativity in the digital world, and the latest viral sensation is a testament to that. A mesmerizing AI-generated video featuring miniature human figures ‘making’ traditional Indian sweets has taken social media by storm, amassing over 16 million views on Instagram.

Miniature workers crafting oversized sweets

The viral reel, shared by the Instagram page @the.aiengineer, showcases tiny human-like figures engaged in the intricate process of ‘preparing’ various Indian sweets that appear much larger than them. Dressed as construction workers, the miniature figures are depicted as ‘perfecting’ stacks of jalebis, kneading soft rasgullas, glazing gulab jamuns, and shaping laddoos, kaju katlis, barfis, patisa, and other beloved treats.

One particularly creative scene features rasgullas floating in a pond of sugar syrup, with the tiny figures rowing a boat over them. In the background, more miniature workers are seen carting, collecting, and shaping ingredients such as dry fruits and nuts. Ladders, cranes, and other construction machinery are cleverly incorporated into the scenes, making the process look like a grand culinary project.

Social media reacts with admiration and humor

The video has sparked a wave of reactions in the comment section. While many users expressed awe and appreciation for the imaginative concept, others found it humorous. Some of the top comments included:

  • “Wow, so beautiful.”
  • “Can’t stop watching it. It’s amazing.”
  • “Get me a ticket to this city.”
  • “Love the imagination.”
  • “No hygiene at all… people are walking on laddoos!”

Some viewers even drew comparisons to the world of ants, while others humorously pointed out concerns about hygiene in this whimsical world of sweets.

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Entertainment

Kiara Advani exits Don 3 after pregnancy announcement, says report

Kiara Advani has reportedly exited Don 3 following her pregnancy announcement. However, an official confirmation is still awaited.

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Kiara Advani exits Don 3 after pregnancy news

Bollywood actress Kiara Advani has reportedly stepped away from Ranveer Singh-starrer Don 3 following her pregnancy announcement with husband Sidharth Malhotra. The actress was earlier confirmed as the female lead in Farhan Akhtar’s much-anticipated film.

No official confirmation from the makers yet

As per a report, Kiara Advani has chosen to prioritize her personal life over Don 3. However, there has been no official confirmation from either the actress or the makers of the film regarding her exit. Last year, Excel Entertainment welcomed Kiara to the Don universe through a social media announcement, but no details about her role were disclosed.

Kiara Advani and Sidharth Malhotra’s pregnancy announcement

Kiara Advani and Sidharth Malhotra shared the joyful news of their pregnancy last week with a heartwarming post on social media. The couple posted an image featuring a pair of tiny socks, captioning it, “The greatest gift of our lives. Coming soon.” Fans and industry colleagues showered the couple with congratulatory messages.

Kiara’s upcoming projects

While stepping away from Don 3, Kiara Advani is currently wrapping up War 2, where she will be seen alongside Hrithik Roshan and Jr NTR. She is also working on Toxic, starring Kannada superstar Yash.

Beyond these confirmed projects, speculation is rife regarding Kiara’s involvement in Shakti Shalini and Dhoom 4, both set for a 2026 release. Whether she will continue with these projects or take a break remains to be seen, with an official announcement awaited.

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