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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.

New Delhi, Feb 16: RSS chief Mohan Bhagwat on Saturday said everyone is unhappy in the society and constantly agitating notwithstanding a "many-fold rise" in materialistic comforts and pleasures.

Addressing a gathering of Sangh workers and intellectuals here in Gujarat, Mr Bhagwat also said that even political parties who are not in power are also agitating.

"Inspite of increase in comforts and materialistic pleasures, everyone is unhappy and is staging agitations. Be it owner or servant, a party in opposition, the common man students, teachers, everyone is unhappy and dissatisfied," the Rashtriya Swayamsewak Sangh (RSS) chief said.

He was speaking on the topic "India's Role in the Present World Context".

Mr Bhagwat further said that bigotry, violence and terrorism are on the rise in the present world.

"India has to give 'dharma'  (wisdom) to the world so that knowledge spreads but humans do not become robotic. We have always talked about the concept of global family but not global market," he said.

The lecture was organised by "Madhav Smruti Nyas", an organisation backed by the RSS.

"To think that we are living in a better world is a half truth. Facilities are not evenly distributed. Rule of Jungle is prevailing. A capable person is crushing the weak to climb up. Knowledge is used more for the destruction of the world," the Sangh chief said.

Mr Bhagwat said people are also misusing social media by spreading "false information" to create controversies.

He also stated that trying to put "everyone into one uniform" is also a form of bigotry.

"US and Russia are super powers. China would become a super power too. Now, what super power nations did to others? They just took control of other countries for their own selfish agenda. These super powers gave it back only when they were asked to do so. Otherwise, they never gave anything to others," said Mr Bhagwat.

Feb 19: Pay increases across India’s organized sector will probably grow at the slowest pace since 2009 this year, according to a survey from Aon Plc.

Companies will increase average pay by 9.1% in 2020, down from 9.3% in 2019 and 9.5% the previous year, Aon said in a report published Tuesday. The small increase reflects a deep slowdown in Asia’s third-largest economy, where growing pessimism about job prospects have led many to cut down on consumption -- the main driver to growth.

India still leads the Asia-Pacific region in pay rises, but that is mainly due to higher inflation and a “war for key talent and niche skills,” Aon said.

“There is a general air of caution about the economy as we enter into 2020,” Tzeitel Fernandes, partner for rewards solutions at Aon, told reporters in New Delhi. “Low GDP projection and weak consumer sentiment are the reasons behind our lowest ever prediction.”

E-commerce companies and start-ups will probably get the biggest salary increases, projected at an above-average 10%, while financial institutions will hand out 8.5%. Unsurprisingly, the auto sector witnessed the biggest drop in growth -- down to 8.3% from 10.1% in 2018, according to Aon. The survey covered more than 1,000 companies across over 20 industries.