Order of the National Green Tribunal (Southern Zone, Chennai) in the matter of Yelahanka Puttenahalli Lake and Bird Conservation Trust Vs State of Karnataka & Others dated 02/05/2025. Pursuant to the tribunal order dated April 24, 2025, Bangalore Water Supply and Sewerage Board (BWSSB) informed the court that as per …
The ozone layer - which protects us from harmful ultraviolet radiation - is recovering at the poles, but unexpected decreases in part of the atmosphere may be preventing recovery at lower latitudes. Global ozone has been declining since the 1970s owing to certain man-made chemicals. Since these were banned, parts …
The restoration of the globe’s protective shield of ozone will be delayed by decades if fast-rising emissions of a chemical used in paint stripper are not curbed, new research has revealed. Atmospheric levels of the chemical have doubled in the last decade and its use is not restricted by the …
This annual statement confirms that 2016 was the warmest year on record, approximately 1.1 °C above the pre-industrial period, and 0.06 °C above the previous highest value set in 2015. Noteworthy extreme events in 2016 included severe droughts that brought food insecurity to millions in southern and eastern Africa and …
Ultraviolet (UV) radiations from the Sun in the spectral range 100-280 nm react with the stratospheric atmosphere, and oxygen molecules (O2) and atoms (O) combine to produce ozone (O3). Since there are destruction processes also, the equilibrium amount is small, only a few percent of the atmosphere. However, it serves …
A loose coalition of more than 100 countries, including the US and European nations, is pushing for an early phase-out of hydrofluorocarbons (HFCs), a powerful greenhouse gas that if left unchecked is set to add a potentially disastrous 0.5C to global temperatures by the end of the century. At a …
The Antarctic ozone hole has swelled this month to one of its biggest sizes on record, UN and US scientists say, insisting that the Earth-shielding ozone layer remains on track to long-term recovery but residents of the southern hemisphere should be on watch for high UV levels in the weeks …
The U.N.'s weather and climate agency said on Thursday there was no cause for alarm about a record-size hole this month in the ozone layer, that shields life on earth from the sun, as it should shrink again. The ozone hole that appears over Antarctica fluctuates in size, normally reaching …
It turns out that common chemical coolants actually lead to ozone depletion. The coolants, known as hydrofluorocarbons (HFC), contribute by a small amount, which counters a decades-old assumption about them. The ozone layer comprises a belt of ozone molecules located primarily in the lower stratosphere. It is responsible for absorbing …
WMO has published the first issue in the 2015 series of the Antarctic Ozone Bulletin, with information on the state of the ozone layer in Antarctica and surrounding areas. Measurements with ground-based instruments and with balloon sondes from some stations in the Global Atmosphere Watch network show first signs of …
Emissions of nitrous oxide (N2O) from agriculture in some locations are underestimated by 40% according to new research. The gas is a significant threat as it contributes both to global warming and the destruction of the ozone layer. Intensive farming and the use of fertilisers are the biggest human sources …
The Antarctic ozone hole would have been 40% bigger by now if ozone-depleting chemicals had not been banned in the 1980s, according to research. Models also show that at certain times, a large hole would have opened up at the other end of the globe. The Arctic hole would have …
New NASA satellite data confirms what other research has shown, namely that the hole in the ozone layer appears to be getting smaller. The ozone is crucial for us here on Earth because it shields us from some of the Sun’s most damaging radiation. In the 1980s it was confirmed …
Our atmosphere "contains an unexpectedly large amount of an ozone-depleting compound from an unknown source, decades after the compound was banned worldwide," reports a NASA study out this week. Before its use was supposedly banned in 1987 by an international treaty, the compound, carbon tetrachloride (CCI4), was produced in large …
Researchers have found that an atmospheric hole over the tropical West Pacific is reinforcing ozone depletion in the polar regions and could have a significant influence on the climate of the Earth. An international team of researchers headed by Potsdam scientist Dr. Markus Rex from the Alfred Wegener Institute has …
More ice means fewer elephant seal pups, according to Australian scientists studying breeding colonies on Macquarie Island near Antarctica and atmospheric changes in the region that have affected the feeding grounds. "When there's more sea ice the population is likely to go down and in years when there's less sea …
Remember the Ozone hole? Decades ago it was a big concern. It was getting bigger and bigger and our emissions of ozone-depleting substances was identified as the main reason. It continues to get smaller as anthropogenic emissions continue to be reduced. It was slightly smaller in 2013 than average in …
Industrialised countries should phase out HFC says Sunita Narain, Director-General, CSE in this presentation at CSE Annual South Asian Media Briefing Workshop on Climate Change, 2013 held from September 18-19, 2013. HFC: A lesson on how companies make money to save the world - Presentation by Sunita Narain, Director-General, CSE …
"Vital Ozone Graphics – resource kit for journalists" is a joint publication of UNEP DTIE OzonAction and GRID-Arendal. It features 30+ new graphics explaining physical, technical, economic and political aspects of the disconcerting process of ozone destruction in the atmosphere and the human action that has been taken to stop …
The efforts of the Parties to the Montreal Protocol have, over the last 25 years, translated scientific realities into political decisions leading to concrete action on the ground. The experience of this Protocol can act as both guide and inspiring example of the multilateral system at its best, and should …
The ozone layer acts like a shield in safeguarding the Earth by preventing the harmful ultraviolet radiations from entering into the atmosphere. Reported damage to the ozone layer in 1985 was a significant milestone in Antarctic science research. The research work played a significant role in generating international socio-political debate …
