Noble gas 4 votes
Laughing gas 1
Gas bags 3
What a nerve gas 1
A pretty even split then between those admiring the good intentions and those sceptical of whether the targets can, and perhaps should, be met.
Perhaps the Scottish government would persuade more people by seeking an endorsement from a prominent celebrity? Susan Boyle for example - I can see it now, Boyle's Law. And if anyone can think of worse gas-related puns please share them!