No political content on NaMo TV without pre-certification: EC tells Delhi CEO

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, Jun 7: A day after India and China military commanders held "cordial and positive" talks at Chushul-Moldo point along the Line of Actual Control in Eastern Ladakh, Ministry of External Affairs said the two countries have agreed to "peacefully" resolve the situation in the border areas by continuing the military and diplomatic engagements.

The Indian delegation led by 14 Corps Commander Lt Gen Harinder Singh on Saturday met his Chinese equivalent Maj Gen Liu Lin, who is the commander of South Xinjiang Military Region of the Chinese People's Liberation Army, to address the ongoing tussle in Eastern Ladakh.

In a statement on Sunday, the MEA said that the meeting between the Corps Commander based in Leh and the Chinese Commander took place in a "cordial and positive atmosphere".

"Both sides agreed to peacefully resolve the situation in the border areas in accordance with various bilateral agreements and keeping in view the agreement between the leaders that peace and tranquillity in the India-China border regions is essential for the overall development of bilateral relations," the statement read.

They also noted that this year marked the 70th anniversary of the establishment of diplomatic relations between the two countries and agreed that an early resolution would contribute to the further development of the relationship.

"Accordingly, the two sides will continue the military and diplomatic engagements to resolve the situation and to ensure peace and tranquillity in the border areas," it further read.

China has moved its troops along the Line of Actual Control (LAC) in the Eastern Ladakh areas including the Finger area, Pangong Tso Lake, and Galwan Nala area.

The meeting between military commanders was to discuss and resolve the stand-off in Eastern Ladakh.

Following the meeting, the Army Headquarters' Directorate General of Military Operations also briefed the Ministry of External Affairs and other concerned government officials about the discussions.

On Friday, officials of India and China interacted through video-conferencing with the two sides agreeing that they should handle "their differences through peaceful discussion" while respecting each other's sensitivities and concerns and not allowing them to become disputes in accordance with the guidance provided by the leadership.

In the last few days, there has not been any major movement of the PLA troops at the multiple sites where it has stationed itself along the LAC opposite Indian forces.

The Chinese Army's intent to carry out deeper incursions was checked by the Indian security forces by quick deployment.

The Chinese have also brought in heavy vehicles with artillery guns and infantry combat vehicles in their rear positions close to the Indian territory.

May 9: Union Home Minister Amit Shah has said the West Bengal government is not allowing trains with migrant workers to reach the state that may further create hardship for the labourers.

In a letter to West Bengal Chief Minister Mamata Banerjee, Shah said not allowing trains to reach West Bengal is "injustice" to the migrant workers from the state.

Referring to the 'Shramik Special' trains being run by the central government to facilitate transport of migrant workers from different parts of the country to various destinations, the home minister said in the letter that the Centre has facilitated more than two lakh migrants workers to reach home.

Shah said migrant workers from West Bengal are also eager to reach home and the central government is also facilitating the train services.

"But we are not getting expected support from the West Bengal. The state government of West Bengal is not allowing the trains reaching to West Bengal. This is injustice with West Bengal migrant labourers. This will create further hardship for them," Shah wrote.