Mercury (Hobart)

Greenland rain our problem too

If ever there was another wake-up call needed to signal a climate change emergency, it was rain in an area known only for snowfall,

- writes Peter Boyer A former Mercury reporter and public servant, Peter Boyer specialise­s in the science and politics of climate.

THE US Summit Station, more than 3km above sea level on Greenland’s ice sheet, is the Northern Hemisphere’s coldest place. Only the higher Antarctic ice sheet is colder.

Field observers expected snow when a storm front approached one day in midAugust, because that was all you ever got in this frigid place where rain had never been recorded. But instead of snow they got several hours of drenching rain. That day nearly half the surface area of Greenland’s ice sheet was subjected to melting, after a similar-sized melt in July. This year is just the second on record, after the Arctic’s standout warm year of 2012, that melting on that scale has happened more than once.

The Summit event shows rain can now happen anywhere in Greenland, and that is seriously bad news. A US-German study published in The Cryosphere early last year found that rain is responsibl­e for as much as 70 per cent of Greenland’s ice loss – currently running at around 270 billion tonnes a year.

Added to other indicators of a heating Earth – longerlast­ing and deadlier summer heat, melting Arctic permafrost, animals on land and in oceans migrating to cooler places – Greenland’s vanishing ice is undeniable evidence that global warming is gathering pace.

As the UN put it this month, its 2021 scientific report is a “code red for humanity”.

Tasmania and Greenland are truly poles apart. In this cool winter after a mild summer, climate change is not exactly on our minds.

It’s even possible to imagine us avoiding the worst of it, just as (so far) we’ve managed to avoid the worst of the pandemic.

Escalating Covid case numbers in southeaste­rn states are a warning to take nothing in nature for granted.

But even in relatively untouched Tasmania, the immediacy of the coronaviru­s threat makes it hard to focus on anything else.

So it’s no surprise that a motion put to state parliament by Greens leader Cassy O’Connor last Wednesday, asking it to declare that the state is in a climate emergency, raised little interest outside the three individual MPs who spoke to the motion.

It’s not the first time the Greens have sought such a declaratio­n from parliament, and doubtless won’t be the last. But every time their effort has been stymied by the government standing firm, claiming there is no emergency, and this time was no exception.

Only Ms O’Connor, Labor leader Rebecca White and Liberal Madeleine Ogilvie spoke to the motion. Absent were ministers responsibl­e for climate change (Peter Gutwein), for emissions reduction (Guy Barnett), or for emergency management (Jacquie Petrusma). Nor did Michael Ferguson, the minister responsibl­e for Tasmania’s biggest fossil-fuel user, transport.

To an outsider those absences might seem outrageous, but it’s party politics at work.

The government was never going to give any oxygen to a debate on climate.

Especially Mr Gutwein, who having repeatedly declared Tasmania leads the world in cutting emissions would not want such claims opened to scrutiny.

Tasmania’s effort to cut emissions is actually nothing special, especially considerin­g our small population, but the Premier keeps claiming otherwise because carbon accounting convention­s allow use of imprecise land carbon data to offset emissions.

Note that he never refers to those offsets, just our “world leadership”.

Labor has gone along with this charade because it doesn’t want to miss out on any future tactical advantage offered by those accounting convention­s, so Ms White passed up the chance last week to call out Mr Gutwein’s claim of reaching net zero.

But without realising it, Ms Ogilvie hit the mark when she called the alleged achievemen­t “incredible”.

It is indeed not credible. The pandemic proves the Premier is capable of grasping an unpleasant reality and acting on it.

He knows current multiple extreme events, including that rain on the Greenland ice sheet, underline that we’re in a climate emergency.

He gave his only response to the emergency motion

Greenland’s vanishing ice is undeniable evidence that global warming is gathering pace

outside the parliament, saying the Greens were frightenin­g children. If he had raised the topic in any primary or secondary school classroom, he would know instantly how silly that statement is.

Children know the truth, and talk about it.

They want action, not bland, baseless reassuranc­e.

This month he did make a move in that direction by setting up the Premier’s Youth

Advisory Council. He has not yet revealed its members but he might be surprised at their views on a climate emergency.

We live on one planet. Rain at Summit Station, Greenland, is a warning sign for the world.

Last time I checked, that includes Tasmania.

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