Dear Editor,

'Facts v Fiction: busting CSG myths' (Australian Financial Review 18 Aug) states that "myths and unfounded claims are more often found of the side of the anti-coal seam gas activists" but offers no qualitative or quantitative evidence for the claim.

The report also has NSW Chief Scientist Margaret O'Kane giving a 'cautious green light to CSG mining in the Sydney Basin - saying it is likely has less impact than long wall coal mining'.

How about comparing the CSG impact with that of extracting renewable energy?

The Chief Scientist is comparing grey with black rather than white. While this will be pleasing for the CSG companies, it is not good science.

Yours sincerely

Bob Brown