Polluting fireworks

Low on self defence

Pollution killing atmosphere's self-cleansing mechanism

We have crossed the line on climate change, says study

Report reveals that we have breached four of nine limits and threatened the planet’s health

Chief culprit

Study warns that in the future climate change could be primarily responsible for ozone depletion

Letters

No laughing matter

Nitrous oxide is steadily accumulating in the upper atmosphere, eating into the ozone layer and contributing to global warming

Talking about pollution

AIR POLLUTION AND CONTROL· K V S G Murali Krishna· Kaushal and Co, Kakinada, Andhra Pradesh· Rs 500, 345pp

Win some, lose some

Experts debate the phasing out of methyl bromide, a chemical with potent ozone-depleting qualities

Safe under water

Tiny marine life could be safe from harmful effects of ozone depletion

US announces new methane emission standards for oil and gas industry

The government estimates that complying with these standards will reduce methane emissions by up to 45 per cent by 2025

35th Open-Ended Working Group meeting: Global trend of HFCs taken up for discussion

Reports highlighted the ever-increasing dominance of hydrofluorocarbons and their long-term negative impact on climate

Science and Technology - Briefs

Science and Technology - Briefs

Predicting doom

Global warming will impact crop production

Deadly ozone

Multi-pollutant crisis in Delhi-NCR: Ozone pollution another deadly contributor

With high pollution levels and growing heat stress due to climate change, the ozone level is frequently exceeding the standards

Capturing the monsoons

It's a season that inspires and engages everyone, from the farmer to the policy maker. From the scientist to the travel writer. From the …

Hong Kong shows improvement in air quality

Catalytic converters in vehicles bring down emission levels

Methane time bomb ticks under melting Arctic ice

Global warming releasing large amounts of dangerous greenhouse gas from permafrost

Ozone crisis

Forests under threat

OXIDANT AIR POLLUTION IMPACTS IN THE MONTANE FORESTS OF SOUTHERN CALIFORNIA A CASE STUDY OF THE SAN BERNARDINO MOUNTAINS·Paul R Miller, …

California to cut down emissions of methane, HFCs and black carbon

Reduction in the emissions of short lived climate pollutants can facilitate the post-2015 development agenda

Getting the bulletin right

EL Nino and the new challenges

Geopolitics

By another name?

More like a ritual

So much for scope and research scale