US Donald Trump, wife Melania try spinning 'charkha' at Sabarmati Ashram

Patna, Jan 12: Prashant Kishor, national vice-president of the Janata Dal (United), a key ally of the BJP-led NDA, has thanked Congress general secretary Priyanka Gandhi and former AICC chief Rahul Gandhi for their support in opposing CAA (Citizenship Amendment Act) and NRC (National Register of Citizens).

Perceived as one of the closest associates of Bihar Chief Minister Nitish Kumar, who is also the party’s national president, PK (as Prashant is fondly called) also assured the two top Congress leaders that the contentious legislation would not be implemented in Bihar where JD (U) is ruling the State with the support of the BJP.

“I join my voice with all to thank #Congress leadership for their formal and unequivocal rejection of #CAA_NRC. Both @rahulgandhi and @priyankagandhi deserve special thanks for their efforts on this count….also would like to reassure to all – CAA/NRC won’t be implemented in Bihar,” tweeted PK on Sunday.

The development assumes significance as a day back, the Congress Working Committee (CWC) meeting, chaired by Sonia Gandhi, had strongly opposed CAA/NRC/NPR as it was aimed at “sinister design of the present regime to divide Indian people into religious lines.”

The latest tweet by PK is also being seen as a rebuff to the BJP, which again recently reiterated that “the BJP should project its own chief ministerial candidate during the 2020 Bihar Assembly elections.”

The JD (U) had taken umbrage over such provocative statements by BJP leaders and asked the saffron camp to rein in its ‘loudmouths’ as BJP chief Amit Shah had already made it clear that the next Assembly polls in Bihar would be fought under the leadership of Nitish.

Of late, PK has been quite vocal about his opposition to the Centre’s policies, particularly the contentious issues of NRC and CAA. Besides, he even dubbed senior BJP leader Sushil Modi as the man who became Bihar’s Deputy Chief Minister due to ‘circumstances’ as the BJP was decisively decimated during the 2015 Assembly elections.

Nitish never reprimanded PK for his jibe against Modi, thereby giving rise to speculations whether Bihar was again heading for a political churning ahead of Assembly polls slated for October this year.

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.