Chargesheet filed against BJP MP Gautam Gambhir in cheating case

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.

Feb 9: The Electronic Voting Machines (EVMs) used in Delhi Assembly polls are kept under tight security, in the 'Strong Room' located at Atal Adarsh Bengali Balika Vidyalaya in Gol Market.

Voting for Delhi Assembly elections took place on Saturday with voters turnout well short of the 2015 election mark.

Counting of the votes will be on February 11.

Earlier, Deputy Election Commissioner Sudip Jain had said the Delhi elections took place peacefully and smoothly.

Mumbai, Jan 10: India’s oil demand growth is set to overtake China by mid-2020s, priming the country for more refinery investment but making it more vulnerable to supply disruption in the Middle East, the International Energy Agency (IEA) said on Friday.

India’s oil demand is expected to reach 6 million barrels per day (bpd) by 2024 from 4.4 million bpd in 2017, but its domestic production is expected to rise only marginally, making the country more reliant on crude imports and more vulnerable to supply disruption in the Middle East, the agency said.

China’s demand growth is likely to be slightly lower than that of India by the mid-2020s, as per IEA’s China estimates given in November, but the gap would slowly become bigger thereafter.

“Indian economy is and will become even more exposed to risks of supply disruptions, geopolitical uncertainties and the volatility of oil prices,” the IEA said in a report on India’s energy policies.

Brent crude prices topped USD 70 a barrel on rising geopolitical tensions in the Middle East, putting pressure on emerging markets such as India. Like the rest of Asia, India is highly dependent on Middle East oil supplies with Iraq being its largest crude supplier.

India, which ranks No 3 in terms of global oil consumption after China and the United States, ships in over 80 per cent of its oil needs, of which 65 per cent is from the Middle East through the Strait of Hormuz, the IEA said.

The IEA, which coordinates release of strategic petroleum reserves (SPR) among developed countries in times of emergency, said it is important for India to expand its reserves.

REFINERY INVESTMENTS

India is the world’s fourth largest oil refiner and a net exporter of refined fuel, mainly gasoline and diesel.

India has drawn plans to lift its refining capacity to about 8 million bpd by 2025 from the current about 5 million bpd.

The IEA, however, forecasts India’s refining capacity to rise to 5.7 million bpd by 2024.

This would make “India a very attractive market for refinery investment,” IEA said.

Drawn to India’s higher fuel demand potential, global oil majors like Saudi Aramco, BP, Abu Dhabi National Oil Co and Total are looking at investing in India’s oil sector.

Saudi Aramco and ADNOC aim to own a 50 per cent stake in a planned 1.2-million bpd refinery in western Maharashtra state, for which land is yet to be acquired.