According to reports, Ms Thompson "visited the Smeerenburg glacier, east of Greenland" aboard the Greenpeace vessel Esperanza.

Standing on the ship's deck, and surrounded by huge amounts of snow and ice, Ms Thompson held up a banner reading: "Tony Abbott Climate Change Is Real I'm Standing On It."

The photograph appears to have been taken from the ship's gas-guzzling chopper.

According to depletedcranium.com, a website run by some boffin called "Dr Buzzo", the MV Esperanza is powered by two huge engines using marine diesel.

"Marine diesel is a lot cheaper [heavier and dirtier] than the land-based kind [of fuel]," the site says.

Apparently, Esperanza also sports a video editing room, a two-way satellite dish and many creature comforts including lavish air-conditioned cabins plus "very large refrigerators and freezers."

"All the other luxuries you'd expect for a crew of candyass rich college hippies" says an obviously unsympathetic Dr Buzzo.

Oh yes, and that must include the aforementioned helicopter, a Hughes 500D "the most inefficient variety of aircraft ever built working on three miles to the gallon."

It may well be no point in explaining to a bunch of committed environmentalists, aboard a ship that has a bigger carbon footprint than King Kong, the irony of all this even if fellow actor Hugh Grant had a bit of a crack at Ms Thompson's Arctic antics when he tweeted: "The increasingly insane Emma Thompson is sailing with Greenpeace to help save the Arctic . . . track her and laugh at her anoraks."

Go Hugh, even if the fellow actor's tweet could be considered a little unkind after taking on board(!) the egregious information that Ms Thompson has during the voyage cooked a meal for the crew in the amazingly well-equipped galley.

That would have no doubt been a hearty meal of mung beans on gluten-free bread.

Forewarned is forearmed, for if Ms Thompson and other eco-toffs, including frequent fliers Chrissie Hynde and Leonardo DiCaprio are doing their best to melt Arctic glaciers, imagine what havoc they could all cause if the Esperanza sailed our way and full steam ahead for the Antarctic?

The seriously weird bit here is that tree-huggers, both local and overseas, are not throwing up their hands in horror at the sheer cost to the environment of what appears to be Thompson's apparent personal mission to bring on global warming.

Gracious us, but a quick calculation on the back of a recycled envelope would see the waters around the state rising to cover an 18-storey building if she came here.

We Tasmanians must do all we can to discourage tripping environmentalists and that includes Copenhagen and Cancun-style international conferences as the sky darkens with planes carrying thousands of delegates wherever.

We must also be on our guard to discourage any climate crusaders who want to relocate to Tassie.

Can you imagine the effect, for example, should eco-campaigner Al Gore turn up?

The story is that the champion of carbon buybacks burns more electricity at his eight-bathroom Nashville, Tennessee, each month than the average American uses in a year.

Now, that's an inconvenient truth and could see a permanent state power "brown-out".

So many other environmentalists talking the talk without walking the walk.

There has, for example, been not a word of protest from Greensters over their leader, Christine Milne, having the dubious distinction of being Tassie's highest spending politician.

Yep, $280,390 outlaid in the six months between July and December last year on flights, car costs and so on.

Christine, (oh yes, and Emma), don't travel so much, help save the planet.