General Awareness

ENVIRONMENT - January 2022

Jan 2022

Mar 29, 2022

City in UP is World's 2nd Noisiest City, Delhi too on UN List

Uttar Pradesh's Moradabad found a place on the world map but not for the right reasons. The United Nations Environment Programme's latest report - that reveals interesting insights on noise pollution globally - has put the city on the second spot in the list of noisiest cities in the world. On top of the list is Bangladesh's Dhaka, and Islamabad in Pakistan is at the third spot - all top three cities are from South Asia. Other Indian cities where ear-splitting noises have been recorded - are Delhi, Kolkata and Asansol in Bengal, and Jaipur.
According to the WHO guidelines, the report says, the permissible noise level limits are 55 dB (decibels) LAeq (equivalent continuous sound level is the sound level in decibels) for outdoor residential areas and 70 dB LAeq for commercial areas, and where there's traffic. Moradabad, one of India's biggest export hubs, recorded 114 dB noise level, second only to Bangladesh's Dhaka.

Mar 27, 2022

Hot Poles: Antarctica, Arctic 70 and 50 Degrees above Normal

Earth's Poles are undergoing simultaneous freakish extreme heat with parts of Antarctica more than 70 degrees (40 degrees Celsius) warmer than average and areas of the Arctic more than 50 degrees (30 degrees Celsius) warmer than average.
Weather stations in Antarctica shattered records Friday as the region neared autumn. The two-mile high (3,234 meters) Concordia station was at 10 degrees (-12.2 degrees Celsius),which is about 70 degrees warmer than average, while the even higher Vostok station hit a shade above 0 degrees (-17.7 degrees Celsius), beating its all-time record by about 27 degrees (15 degrees Celsius), according to a tweet from extreme weather record tracker Maximiliano Herrera.
The coastal Terra Nova Base was far above freezing at 44.6 degrees (7 degrees Celsius).
It caught officials at the National Snow and Ice Data Center in Boulder, Colorado, by surprise because they were paying attention to the Arctic where it was 50 degrees warmer than average and areas around the North Pole were nearing or at the melting point, which is really unusual for mid-March, said center ice scientist Walt Meier.

Mar 26, 2022

Great Barrier Reef: Australia Confirms New Mass Bleaching Event

Australia's Great Barrier Reef is being devastated by another mass bleaching event, officials confirmed.
It is the fourth time in six years that such severe and widespread damage - caused by warm sea temperatures - has been detected.
Only two mass bleaching events had ever been recorded until 2016.
Scientists say urgent action on climate change is needed if the world's largest reef system is to survive.
There are particular concerns that this bleaching event has occurred in the same year as a La Niña weather phenomenon. Typically in Australia, a La Niña brings cooler temperatures.
Scientists are now fearful of the damage that could be caused by the next El Niño.

Mar 25, 2022

Bangladesh Most Polluted Country of the World

Bangladesh was the most polluted country in the world in 2021, says the World Air Quality Report prepared by the Swiss-based air quality technology company IQAir in its latest report released in March, 2022. In terms of particulate matter in the air, Bangladesh recorded an average PM2.5 level of 76.9 micrograms per cubic metre in 2021 against the World Health Organisation (WHO) recommended maximum permissible level of 5 micrograms per cubic metre.
The data reveals that not a single country in the world managed to meet the WHO's air quality standard in 2021. All over the world, 93 cities reported PM 2.5 levels at 10 times the recommended level.

Mar 23, 2022

New Delhi World's Most Polluted Capital City

New Delhi was ranked the world's most polluted capital city for a second consecutive year followed by Dhaka (Bangladesh), N'Djamena (Chad), Dushanbe (Tajikistan) and Muscat (Oman).
Of the 15 most polluted cities in Central and South Asia in 2021, 12 were in India.
The annual PM2.5 concentration averages in 48 per cent of India's cities exceeded 50 Ig/m3 or more than 10 times the World Health Organization's (WHO) air quality guidelines.
These startling facts came to light in the 2021 World Air Quality Report according to which, only three per cent of cities and no single country has met the latest WHO PM2.5 annual air quality guidelines.
IQAir's 2021 World Air Quality Report is the first major global air quality report based on updated annual WHO air quality guidelines for PM2.5.

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