Ozone layer

Ozone layer above populated regions is declining, warns study

Ozone layer above populated regions is declining, warns study

Ozone in the lower stratosphere is slowly disintegrating, an international team of two dozen researchers warned.

Feb 07, 2018, 14:42 PM IST
Chemical ban helped closing up of ozone layer hole: NASA

Chemical ban helped closing up of ozone layer hole: NASA

The ban on the CFCs resulted in about 20 per cent less ozone depletion during the Antarctic winter from 2005 to 2016, while chlorine levels declined by an average 0.8 per cent annually, the scientists said.
 

Jan 06, 2018, 14:34 PM IST
World Ozone Day, 2016: Environment Ministry rolls out damage control initiative to restore Ozone layer

World Ozone Day, 2016: Environment Ministry rolls out damage control initiative to restore Ozone layer

This new initiative is a collective work of Centre for Atmospheric and Oceanic Sciences (CAOS), Council of Scientific and Industrial Research (CSIR) and Department of Science and Technology (DST)  among others.  

Sep 16, 2016, 21:45 PM IST
Signs of `healing` ozone layer over Antarctic: Study

Signs of `healing` ozone layer over Antarctic: Study

The hole in the ozone layer over the Antarctic has begun to shrink, signaling good news for the environment several decades after an international accord to phase out certain pollutants, researchers said Thursday.

Jul 01, 2016, 01:29 AM IST

Fires in Africa causing high ozone layers in Guam : Study

A new study has found that fires burning in Africa and Asia are the main cause for the high levels of ozone in the tropical Pacific region.

Jan 18, 2016, 13:55 PM IST
Refrigerator coolants contribute to ozone depletion: NASA

Refrigerator coolants contribute to ozone depletion: NASA

The researchers estimated that the common chemical coolants known as hydrofluorocarbons (HFCs) will cause a 0.035 percent decrease in ozone by 2050.

Oct 24, 2015, 12:03 PM IST

New technology, research needed to fight climate change: Prakash Javadekar

 Environment Minister Prakash Javadekar on Wednesday pitched for new research and technology to combat the affects of climate change.

Sep 17, 2015, 09:37 AM IST

'Montreal Protocol has helped slow ozone depletion'

Thanks to the Montreal Protocol, the ozone layer is in much better shape now than it would have been without the United Nations (UN) treaty, a new study says.

May 27, 2015, 20:27 PM IST
New ozone-destroying gases on the rise

New ozone-destroying gases on the rise

The ozone layer faces a new threat as certain chemicals which have historically contributed little to ozone depletion are now on the rise, warn researchers

Feb 17, 2015, 11:12 AM IST

Ozone depletion has 'devastating' effects on southern hemisphere's weather

A new research has revealed that the ozone depletion, which acts like a climate driver, potentially has devastating effects in the southern hemisphere.

Dec 02, 2014, 18:46 PM IST
Future air quality may put plants at risk

Future air quality may put plants at risk

By 2050, cumulative exposure to ozone during the summer will be high enough to damage vegetation, estimates an international research team. (13:30)

Nov 07, 2014, 14:28 PM IST
UN chief cites Montreal Protocol to address climate challenge

UN chief cites Montreal Protocol to address climate challenge

UN Secretary-General Ban Ki-moon has underlined the importance of the Montreal Protocol to address the climate challenge on the International Day for the Preservation of the Ozone Layer, being observed Tuesday.

Sep 16, 2014, 18:02 PM IST

Fragile ozone layer shows first sign of recovery: UN

The ozone layer that shields life from cancer-causing solar rays is showing its first sign of recovery after years of dangerous depletion, a UN study said on Wednesday, in a rare piece of good news on the environment.

Sep 11, 2014, 02:19 AM IST
Ozone layer on track to recovery: UN report

Ozone layer on track to recovery: UN report

The depleting ozone layer is well on track to recovery in the next few decades because of "concerted international action", according to an assessment report by UN Enviornment Programme and World Meterological Organisation.

Sep 10, 2014, 22:11 PM IST
India's ozone pollution destroys crops enough to feed 94mn people annually

India's ozone pollution destroys crops enough to feed 94mn people annually

A new study has revealed that India's ozone pollution damaged millions of tons of the country's major crops, causing losses of more than a billion dollars and destroying enough food to feed 94 millions of people living below the poverty line.

Sep 05, 2014, 11:39 AM IST

Mysterious source of ozone-depleting chemical baffles NASA

A chemical used in dry cleaning and fire extinguishers may have been phased out in recent years but NASA said Wednesday that carbon tetrachloride (CCl4) is still being spewed into the atmosphere from an unknown source.

Aug 21, 2014, 08:22 AM IST

Ozone peaked to dangerous levels in Delhi: Study

Even as residents in Delhi continue to battle the soaring temperature this summer, the Ozone has also peaked to dangerous levels in the national capital.

Jun 10, 2014, 23:01 PM IST

Climate changes put the freeze on elephant seal births

More ice means fewer elephant seal pups, according to Australian scientists studying breeding colonies on Macquarie Island near Antarctica.

Mar 27, 2014, 16:12 PM IST

Climate change to undermine world ocean systems by 2100

Scientists have found that no corner of the world ocean will be untouched by climate change by 2100, with the sea experiencing the simultaneous effects of warming, acidification and oxygen depletion.

Oct 16, 2013, 19:33 PM IST

New device can detect dangerous ultraviolet light

Scientists have developed a new device that can detect in just milliseconds a certain type of high-energy ultraviolet light which is powerful enough to break the bonds of DNA and harm living creatures.

Oct 06, 2013, 16:21 PM IST