Law to punish husbands after instant talaq will be a New Year gift for Muslim women: Modi

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.

Thiruvananthapuram, Apr 22: Eleven more people tested positive for COVID-19 in Kerala with totalpositive cases in the State touching 437on Wednesday.

Two house surgeonsof the Kozhikode Medical college are among those who have tested positive for the virus.

The two had travelled outside the state,Chief Minister Pinarayi Vijayan told reporters.

Kannur reported seven cases, Kozhikode two, while one case each was reported from the districts of Kottayam and Malappuram.

Only one person tested negative.

The state has 127 active cases and 29,000 people are under observation, including 346 in hospitals.

New Delhi, Jan 27: Remember the story of two friends coming face-to-face with a bear in a forest? One of the two friends climbs the tree to save his life and the other, not knowing how to, lays on the ground, breathless, pretending to be dead.

Well, that lesson turned out to be useful for this man who pretended to be dead when a tiger had both his paws on the man's chest.

Yes, that is right. IFS officer Parveen Kaswan recently shared a video of a man lying under a tiger, with their faces extremely close to each other with the caption, "You want to see how does a narrow escape looks like in case of an encounter with a #tiger. #Tiger was cornered by the crowd. But fortunately, the end was fine for both man and tiger. Sent by a senior."

You want to see how does a narrow escape looks like in case of encounter with a tiger. Tiger was cornered by the crowd. But fortunately end was fine for both man and tiger. Sent by a senior. pic.twitter.com/1rLZyZJs3i

— Parveen Kaswan, IFS (@ParveenKaswan) January 25, 2020

Another Twitter user shared the full 30-second video in the comments. He also said that the incident occured in Tumsar in Bhandara district, Maharashtra. The spine-chilling clip shows a tiger running freely in the fields trying to avoid people who have surrounded him and are trying to shoo him away.

Here's the full video pic.twitter.com/Avvci4Bnhg

— January 25, 2020

In his quest to run away, the scared tiger grabs a human. When he sees that people are still approaching him and trying to scare him away, he gets up and runs away for his life. All this while, the man who was captured by the animal lays still on the ground and does not make an attempt to get free.

This is what stuck with Twitter and they are praising the man for his presence of mind.