If gas-fired electricity emissions can be lower than that from coal-fired plants, should Australia expand its fossil gas industry as a means of combating climate change? The answer is a clear no if we want to avoid the worst climate change outcomes.

Science has repeatedly demonstrated that the most important action to limit global warming to well below 2 degrees is to begin to reduce all fossil fuel consumption – coal, yes, but oil and gas too – in this decade.

The primary difficulty is the large mismatch between what is required to meet that stated climate goal of the Paris Agreement and what nations have actually pledged to do. Worse still, the current policies of many countries, Australia included, would increase their national production of fossil fuels, increasing emissions above their own weak pledges.

This so-called "production gap" is the subject of a recent multi-institutional, multi-national report led by the Swedish Environment Institute. Its analysis shows that governments are planning to produce about 50 per cent more fossil fuels by 2030 than would be consistent with a 2-degree pathway and 120 per cent more than would be consistent with a 1.5-degree pathway. This means that plans for fossil fuel development or extension that are already on the table must be shelved to hold warming to the Paris target range.

Read the full article on The Sydney Morning Herald website, authored by Prof Penny Sackett