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 …