Kuala Lampur, Dec. 20 -- As the threat of climate change grows, the world is in top gear tackling the root cause of the malaise: greenhouse gas emissions (GHG). The most common GHG is carbon dioxide.

There are others which can be more menacing. Methane gas emissions have created much furore as well.

Though the oil and gas industry emits most, world attention is somehow directed more towards cattle farming. Nitrous oxide gas coming from nitrogen fertilisers used in agriculture is also a major GHG.

Both methane and nitrous oxide have higher global warming potential. But carbon dioxide wins hands down in quantities.

Experts are unanimous on the fact that our common practice of burning fossil fuels for energy is the largest contributor to...