The Australian Parliament yesterday repealed its punitive tax on carbon emissions, following through on a promise from Prime Minister Tony Abbott to get rid of the measure he said, back in 2009, was based on “absolute crap” climate science.

The unpopular job-killing levy has reportedly felled at least two prime ministers, and one of Abbott’s colleagues said the same fate awaits candidates who campaign to revive the carbon tax, including Labor Party leader Bill Shorten.

“I can tell Bill we will hang this around his neck like a rotten, stinking carcass, right through to election day at the end of 2016,’’ [Education Minister and Liberal Party leader Christopher] Pyne told Parliament…“Because we can now tell the Australian public, with great confidence, that if they vote Labor at the next election the carbon tax will be reintroduced – the job-destroying, price-rising carbon tax that cost Julia Gillard her prime ministership, Kevin Rudd his prime ministership the first time, and arguably the second time. And it is going to cost you the prime ministership of Australia,” Mr Pyne said.

All of this, on the eve of Australia’s hosting of the next G-20 summit of industrialized nations whose leaders hope to institute a global carbon tax, or at least a formal U.N. agreement among 190 nations by 2015. Prime Minister Abbott can look forward to a lot of finger wags and tongue clucks, not to mention vitriolic rants, from the defenders of the planet who will, doubtless, arrive at the G-20 summit this time by kayak and bicycle, rather than by charter jet and limo.

If nothing else, this episode proves that elections matter.

Abbott won a landslide election victory last year for his Liberal-National coalition that he said gave him a mandate to throw out the “toxic tax” on carbon, which was triple Europe’s carbon price. The government estimates the repeal will save the average family A$550 a year in lower electricity prices and make Australian companies more competitive.

Perhaps I should say “elections can matter,” if you elect candidates who do what they say they will.

Memo to GOP 2016 presidential hopefuls: Skip a trip to Iowa, and stop by Canberra for a weekend, if only to touch the hem of Abbott’s garment.