Of the major parties, Labor owns the climate change issue. They're the ones who have consistently stated Australia should sign up to Kyoto, consistently argued about how vital it is to combat, while consistently pursuing the Government over its failure to act.
It's coincided with global warming becoming a mainstream issue. And it's helped boost support for Labor among voters. Sure, Kevin Rudd's elevation to leader, Iraq, the 'it's time' factor are all very important, but climate change matters too.
One of the worst images for the Government in the past term was gravelly voiced Industry Minister Ian Macfarlane standing up in Parliament and dismissing nobel prize and oscar-winning Al Gore's "An Inconvenient Truth" as simple entertainment. Agree with what's in the documentary or not, it tapped into a wave of concern and discontent about the issue. The Coalition was seen as flat-footed at best, completely negligent at worst.
But the PM has slowly tried to turn it around. He's announced an emissions trading scheme, a climate change fund, more money for renewable energy, and a commitment to pursue what he calls an agreement 'beyond-Kyoto'.
He's now being helped by Peter Garrett - Labor's Shadow Environment Minister. The former Midnight Oil frontman has had a rough year. Forced to cop the US increasing its presence at Pine Gap, he's also had to watch as Labor agreed to expand uranium mining and build a polluting pulp mill. Not the favourite positions of a man who once headed up the Conservation Foundation.
But at least he had climate change. Well, until now.
He's been dragged into line after saying Labor would sign up to a post-Kyoto deal, even if it doesn't include major emitters like China and India. Kevin Rudd endorsed the position too, so you'd think he'd be on safe ground.
But not anymore. The Opposition Leader - reacting to bad headlines and Coalition attacks - has hung Garrett out to dry. He says Australia would only commit to a new deal if developing countries and the major emitters were involved. If Garrett wants to share the experience of his leader bashing him up in public for just stating Labor policy, he could call Robert McClelland.
The rub of all this is the Coalition can make hay. It didn't take the Prime Minister long to pop his head up and welcome Mr RUDD's comments, saying Labor now agrees with him on climate change. Yes, that's right - the Opposition is following the Government's lead on the issue.
So much for Labor having the climate change vote locked up.