Classroom: A cold response
Leapfrog the chemical treadmill
Go straight to climate-friendly options for refrigerants
Cat out of the bag
First observed evidence of long-term effects of GHG emissions
Why should progress be putrid?
US, China to work together on phasing down HFCs
India cautious in response; to disclose stand in Bangkok end of June
Ozone-smart, climate-cool
Highest in 650,000 years
Science and Environment - Briefs
Green chemistry is key to reducing waste and improving sustainability
Green chemistry prioritises safety, improving energy efficiency and, most importantly, minimising toxic waste from the very beginning
Eco-cool
An Indian firm introduces eco-friendly air conditioners and takes a step towards a future free from ozone holes
Countries agreed to ban ozone-depleting chemicals in 1980s — but 5 CFCs are increasing to record levels in atmosphere
The 1987 Montreal protocol restricted the release of chlorofluorocarbons to the atmosphere
Factsheet: HFCS - realising the potential for climate benefits from the Montreal Protocol
In 1987, the Montreal Protocol phased out the use of chlorofluorocarbons (CFCs), an ozone-depleting substance (ODS) used as coolants in …
How a saviour of the ozone hole became a climate change villain – and how we're going to fix it
HFCs were created to replace ozone-damaging chemicals, but they turned out to be major contributors to climate change
The hole truth
NASA discovers the largest ever ozone hole over Antarctica. A wake up call for industrialised countries to reduce greenhouse gas emissions
Substance Abuse
The Montreal Protocol was meant to eliminate Ozone-depleting substances. It is turning out to be a technology trap for Indian industry. And …
Safeguarding Ozone and Earth
As we celebrate the 22nd International Day for the Preservation of the Ozone Layer, Down To Earth takes a look at what should be done to …
The ozone threat
Alternatives to banned ozone-depleting substances may jeopardise the effectiveness of the Montreal Protocol
Global Environmental Governance
Global environmental negotiations on issues such as climate change, biodiversity and desertification often seem to be far removed from the …
Hush!
The refrigerant and air conditioning industry in India remains quiet about its moves post 2002 when it stops using chlorofluorocarbons. Is it …
A case of myopia?
For manufacturers of ozone destorying substances in the South its time to make a tough call. The protocol brings the bigwigs of the North-based …
A monopoly like none other
An amendment to the Montreal Protocol without addressing IPR issues of HFOs would mean that the entire MAC sector would be at the mercy of three …
Ozone therapy
Reduction of ozone-depleting substances could actually lead to the ozone layer repairing itself
Chief culprit
Study warns that in the future climate change could be primarily responsible for ozone depletion
Antarctic ozone layer hole keeps shrinking in 2022: NASA, NOAA
Ban on chemicals adopted by Montreal Protocal attributed to gradual ozone layer recovery
‘Developed nations want India to leapfrog to a technology which even they have not accepted’
With climate change negotiations round the corner, an important debate on the use and phase out of hydrofluorocarbons used as coolant in …