Art 370 root cause of terrorism, says Amit Shah as RS clears resolution on J&K

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.

Golaghat, Jul 18: A total of 96 animals have died in the Kaziranga National Park in Golaghat district of Assam due to floods, the state government informed on Saturday.

"So far, 96 animals have died in the park including eight rhinos, seven wild boars, two swamp deers, 74 hog deer and two porcupines," park officials said.

A report from the government of Assam stated that a total of 132 animals had been rescued from the Kaziranga National Park. The park is currently 85 per cent submerged under floodwaters.

"Water level at Pasighar and Dibrugarh are below the prescribed danger level. The floodwater in Numaligarh, Dhansirimukh and Tezpur are still above danger level," the report stated.

At least 76 people have died and nearly 54 lakh people have been affected in 30 districts of Assam due to floods caused by the monsoon rains and the rise in water levels of the Brahmaputra river, informed the Assam State Disaster Management Authority (ASDMA) on Friday.

Mumbai, Feb 26: Maharashtra cabinet minister and Congress leader Aslam Shaikh on Wednesday said that former chief minister Devendra Fadnavis made an irresponsible statement regarding the Shiv Sena-led state government's 'silence' on AIMIM leader Waris Pathan's remark. He added that as the incident took place in Karnataka, Fadnavis should ask Chief Minister BS Yediyurappa about the matter.

"This is an irresponsible statement given by Devendra Fadnavis. He should ask the same question to the Chief Minister of Karnataka where the statement was given," Shaikh said.

"Fadnavis should ask the same question to the Union Home Minister Amit Shah that why has he not been able to control the violence going on in Delhi," he added.

Earlier, on Tuesday, targeting Shiv Sena's silence over the recent controversial remark by Waris Pathan, Fadnavis said the Uddhav Thackeray-led party might be "wearing bangles" but the BJP was not and knew how to retaliate in the same manner.

"Shiv Sena might be wearing bangles but we are not. If someone says something then he will be given an answer in the same way. BJP has this much power," said Fadnavis while launching a scathing attack on ruling-Shiv Sena in Maharashtra for not taking strict action against Pathan.

On February 20, while addressing an anti-CAA rally, at Kalaburagi in Karnataka, Pathan had said, "Time has now come for us to unite and achieve freedom. Remember we are 15 crores but can dominate over 100 crores."