PM Narendra Modi launches three ambitious schemes for transforming urban India

Washington, Apr 23: Air pollution over northern India has plummeted to a 20-year-low for this time of the year, according to satellite data published by US space agency National Aeronautics and Space Administration (NASA).
The US space agency's satellite sensors observed aerosol levels at a 20-year low post the countrywide lockdown, implemented to slow the spread of the novel coronavirus.

"We knew we would see changes in atmospheric composition in many places during the lockdown," said Pawan Gupta, a Universities Space Research Association (USRA) scientist at NASA''s Marshall Space Flight Center. "But I have never seen aerosol values so low in the Indo-Gangetic Plain at this time of year," added Mr Gupta.

Acting Assistant Secretary of State for South and Central Asia Alice G Wells tweeted, "These images from NASA were taken each spring starting in 2016 and show a 20-year low in airborne particle levels over India. When India and the world are ready to work and travel again, let's not forget that collaborative action can result in cleaner air."

The data published with maps show aerosol optical depth (AOD) in 2020 compared to the average for 2016-2019. Aerosol optical depth is a measure of how light is absorbed or reflected by airborne particles as it travels through the atmosphere.

If aerosols are concentrated near the surface, an optical depth of 1 or above indicates very hazy conditions. An optical depth, or thickness, of less than 0.1 over the entire atmospheric vertical column is considered "clean." The data were retrieved by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite.

In the first few days of the lockdown, it was difficult to observe a change in the pollution signature. "We saw an aerosol decrease in the first week of the shutdown, but that was due to a combination of rain and the lockdown," said Mr Gupta.

Around March 27, heavy rain poured over vast areas of northern India and helped clear the air of aerosols. Aerosol concentrations usually increase again after such heavy precipitation.

"After the rainfall, I was really impressed that aerosol levels did not go up and return to normal. We saw a gradual decrease and things have been staying at the level we might expect without anthropogenic emissions," Mr Gupta said.

On March 25, the Indian government placed its 1.3 billion citizens under a strict lockdown to reduce the spread of COVID-19. The countrywide mandate decreased activity at factories and severely reduced car, bus, truck and airplane traffic. Every year, aerosols from anthropogenic (human-made) sources contribute to unhealthy levels of air pollution in many Indian cities.

Aerosols are tiny solid and liquid particles suspended in the air that reduce visibility and can damage the human lungs and heart.

In southern India though, the story is a little hazier. Satellite data show aerosol levels have not yet decreased to the same extent. In fact, levels seem to be slightly higher than in the past four years. The reasons are unclear but could be related to recent weather patterns, agricultural fires, winds or other factors.

"This a model scientific experiment," Robert Levy, program leader for NASA's MODIS aerosol products, said about the lockdown and its effects on pollution.

"We have a unique opportunity to learn how the atmosphere reacts to sharp and sudden reductions in emissions from certain sectors. This can help us separate how natural and human sources of aerosols affect the atmosphere," Mr Levy added.

Ahmedabad, Jan 12: Union Home Minister Amit Shah on Saturday unveiled over 5.5 lakh postcards written by Ahmedabad residents to Prime Minister Narendra Modi, thanking him for the Citizenship (Amendment) Act.

The postcards were stacked on the dais as Shah addressed a gathering of BJP workers who formed letters `C A A’ in front of him.

The state BJP claimed that the party’s “largest awareness campaign” in support of the CAA had found a place in Limca Book of Records and World Record of India.

“It is not just words but a letter of thanks written from the heart. Our public outreach programme is a reply to the lies being spread against the CAA,” Shah said addressing BJP workers from his former Assembly constituency Naranpura.

The BJP had promised to enact the CAA in its manifesto, he said, asking why the Congress did not oppose it then.

Targeting Rajasthan Chief Minister Ashok Gehlot, Shah said, “Congress has a government in Rajasthan. The Congress party in that state had promised that Hindus and Sikhs from Pakistan would be given citizenship.

“Why do you oppose it when we fulfill the promise made by you?” the Union home minister asked.

“In 2006 and 2009, Ashok Gehlot wrote a letter for the same. We covered Hindus, Sikhs, Parsis, Christians, all of them under the Act, you had only mentioned Hindus and Sikhs,” Shah claimed.

Saying that Prime Minister Narendra Modi, by bringing in the CAA, granted “human rights to lakhs of people”, he asked why opposition was against it.

He challenged “Rahul Baba” (Congress leader Rahul Gandhi), Mamata Banerjee and Arvind Kejriwal to show if any provision of the CAA took away the citizenship of Indian Muslims.

“There is no such provision. Lakhs and crores of people have come to India from Pakistan, Bangladesh to save their religion, their self-respect, to save themselves. Where else will they go?” he asked.

“From the first prime minister of the country Jawaharlal Nehru to the first home minister, first president of the country, and Mahatma Gandhi himself had said that whoever comes to India from Pakistan will be granted citizenship. Hindus, Sikhs, Buddhists and Jains coming from Pakistan have nowhere else to go,” he said.

Mumbai, Jun 30: Senior Congress leader and former Union minister Prithviraj Chavan on Tuesday demanded a ban on NaMo app alleging that it was violating privacy of Indians.

The former Maharashtra chief minister also alleged that the NaMo app, the official mobile phone application of Prime Minister Narendra Modi, surreptitiously changes the privacy settings and sends data to third party companies in the US.

"Its good that Modi government is protecting privacy of 130 crore Indians by banning 59 Chinese apps. The NaMo app also violates privacy of Indians by accessing 22 data points, surreptitiously changing the privacy settings and sending data to third party companies in the US," Chavan tweeted.

India on Monday banned 59 apps with Chinese links, including hugely popular TikTok and UC Browser, saying they were prejudicial to sovereignty, integrity and security of the country.

The move came against the backdrop of the border stand-off with China and recent clash in Galwan Valley in which 20 Indian soldiers were killed.