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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]

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Pawan Khera faces fresh setback as Supreme Court refuses relief in passport row case

Congress leader Pawan Khera faces fresh setback as Supreme Court refuses interim relief and directs him to seek bail from Guwahati High Court.

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Pawan Khera

Congress leader Pawan Khera suffered another legal setback on Friday after the Supreme Court of India declined to extend protection in a case linked to his remarks about Himanta Biswa Sarma’s wife.

A bench of the apex court refused to interfere with an earlier order that had stayed the transit anticipatory bail granted to Khera by the Telangana High Court. This decision leaves the Congress leader open to possible arrest by Assam Police in connection with the case.

During the hearing, Khera’s counsel sought interim protection, but the court declined the request and advised him to approach the appropriate court in Assam for relief. The bench clarified that the Guwahati High Court should decide any bail plea independently and on its merits.

“Am I a terrorist?” remark during hearing

While seeking protection, Khera’s legal team expressed concern over the urgency of the situation. In court, his counsel remarked, “Am I a terrorist?” highlighting the plea for temporary relief until a fresh bail application could be filed.

The Supreme Court also raised concerns over the submission of incorrect documents during the proceedings, adding another layer to the legal complications faced by the Congress leader.

Case linked to remarks on CM’s wife

The case stems from a press conference held earlier this month, where Khera made allegations regarding the citizenship status and financial assets of the Assam Chief Minister’s wife, Riniki Bhuyan Sharma.

He had claimed that she possessed multiple passports and owned undisclosed overseas properties. These allegations were strongly denied by the Chief Minister’s family, who termed them fabricated and misleading.

Legal battle intensifies

Earlier, the Telangana High Court had granted Khera temporary transit anticipatory bail, allowing him time to seek relief from a competent court in Assam. However, the Supreme Court stayed that order following a challenge by Assam authorities, escalating the legal battle.

With the latest ruling, Khera is now expected to move the Guwahati High Court for anticipatory bail as the case continues to unfold.

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Congress suspends 5 Haryana MLAs over cross-voting in Rajya Sabha polls

Congress suspends five Haryana MLAs for cross-voting in Rajya Sabha elections, citing serious indiscipline and anti-party activities.

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The Congress has suspended five of its MLAs in Haryana for cross-voting during the recent Rajya Sabha elections, taking disciplinary action over what it described as “anti-party activities”.

The move came after the state unit reviewed the conduct of certain legislators during the polls, where some were found to have voted against the party’s authorised candidate.

Five MLAs suspended after disciplinary process

According to party sources, the MLAs were issued show-cause notices seeking an explanation for their actions. After reviewing their responses, the Congress disciplinary committee recommended suspension.

The decision was approved by the party leadership, including Congress president Mallikarjun Kharge, and has been implemented with immediate effect.

Party calls it ‘grave indiscipline’

Haryana Congress chief Udai Bhan said the action was necessary to uphold party discipline, stressing that defying the official party line during elections weakens organisational unity.

He said the party takes such violations seriously and will continue to act against any form of indiscipline.

Leadership backs strict action

Senior Congress leader and Leader of Opposition Bhupinder Singh Hooda supported the decision, saying it was taken after due consideration.

He noted that while Rajya Sabha elections are conducted through an open ballot system, allowing legislators some flexibility, the party retains the authority to initiate internal disciplinary action in cases of deviation.

Background

The action follows cross-voting reported during the recent Rajya Sabha elections in Haryana, which led to internal concerns within the party. The development has highlighted organisational challenges and prompted the leadership to take corrective steps to reinforce discipline.

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Harivansh set to be elected Rajya Sabha Deputy Chairperson unopposed

Harivansh is set to be elected unopposed as Rajya Sabha Deputy Chairman after no opposition nominations were filed before the deadline.

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Former Rajya Sabha Deputy Chairman Harivansh is set to be re-elected to the same post unopposed in the election due to be held later today.
The date has been fixed by the Chairman under the relevant rules governing the conduct of business in the Upper House.
According to sources, the deadline for submitting motions for the election was 12 noon on April 16. A total of five notices were received within the stipulated time, all proposing Harivansh for the post.

Multiple nominations, single candidate
The motions were submitted by members across parties, including Jagat Prakash Nadda, Nitin Nabin, Nirmala Sitharaman, Sanjay Kumar Jha, and Jayant Chaudhary, each backed by seconding members.
All five motions explicitly state that Harivansh be chosen as the Deputy Chairman of the Rajya Sabha.

No opposition nomination filed

Notably, no motion was submitted by the Opposition before the deadline. This effectively clears the path for a unanimous election, as there is no contest for the position.
As per parliamentary procedure, motions will be taken up one by one. Once any one motion is adopted by the House, the remaining motions will not be put to vote.

Likely to be elected by voice vote
In line with established practice, the first motion — expected to be moved by Nadda — may be adopted through a voice vote. Following this, the Chairman will formally declare Harivansh as elected Deputy Chairman.
After the declaration, Harivansh will be escorted to the Chair by members from both the Treasury and Opposition benches, adhering to parliamentary convention.

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