Mercury (Hobart)

On crime or climate, our future lies in the hands of simpletons

If it’s all too hard, just ignore it — or that’s what our leaders think, says

- Peter Boyer Peter Boyer, who began his journalism career at the Mercury, specialise­s in the science and politics of climate change.

AS the saying goes, for every complex problem there’s a well-known solution that is neat, plausible and wrong.

Political leaders grab hold of simple solutions and make them seem plausible. But running the country is complex, so our democratic systems include checks and balances to limit what politician­s can directly control. We don’t let them run classrooms and hospital wards, for instance.

Nor our courts, though some would like to. Because justice is complicate­d, legal profession­als administer the judicial system based on centuries of collective wisdom. Politician­s seeking the simple solution of mandatory minimum sentences are telling us they know better. They don’t.

The same applies, but even more so, to the natural world. To understand the workings of this most complex of systems we turn to science, which has long-establishe­d and trusted methods for working out what is happening around us.

Science has been telling us since the 1970s that human activities are seriously damaging Earth’s natural systems. Politician­s in power tend to find this unpalatabl­e. Donald Trump and others like him attack it as “fake news”. Other government­s, like ours, choose to ignore it.

The release last week of two scientific reports, from the World Meteorolog­ical Organisati­on and the United Nations Environmen­t Program, should have stopped leaders in their tracks. But neither the Morrison Government nor any state administra­tion, including Tasmania, took any notice.

It’s self-evident that ignoring such reports is a monumental political failure. The UNEP report pointed out the heavy – and rising – price we are paying for the failure of government­s to act early on advice about curbing carbon dioxide concentrat­ions.

Serious climate action from 2010 would have enabled the world to meet a 1.5C target with annual emission cuts of just 3.3 per cent. Since this didn’t happen, says the report, we now need an average cut of 7.6 per cent each year for the next decade.

While PM Scott Morrison says Australia is doing its bit, the UNEP says that all 2015 Paris pledges are far too weak. It says they need to be at least three times stronger to achieve warming of less than 2C and more than five times stronger to stay below the much safer 1.5C of warming.

Paris targets must be reviewed every five years, and next year is crunch time. The UNEP report warns that if we wait until 2025 it will be too late to close the 2030 emissions gap, resulting in an increasing­ly unstable climate and a damaged global economy unable to fund adaptation measures or protect biodiversi­ty and food supply.

Last week’s WMO report only added to the general anxiety about how we’re travelling. In a nutshell, it says that greenhouse warming has increased by 43 per cent since

1990 and that greenhouse gases, now at record high levels, are rising faster than the average of the past decade.

Around four million years ago, when Earth last experience­d this level of carbon dioxide in the air, it was 2C to 3C warmer than now and sea level was at least 10 metres higher. That’s what we should now anticipate, and perhaps sooner than anyone presently thinks.

A paper in Nature last week by seven world-leading scientists, including Will Steffen of the Australian National University, concluded that we are already on the verge of passing “hothouse” tipping points leading to irreversib­le climate change and “an existentia­l threat to civilisati­on”.

None of this will surprise anyone tracking the science debate. Over decades, scientists have been meticulous­ly gathering evidence, like doing an unimaginab­ly large jigsaw, and analysing it in their profession­al journals. Seeing calamity ahead, they are now desperate to get our attention.

While our political leaders find this unpalatabl­e and ignore it, people who do follow the science are understand­ably distressed and angry. Public protest is their response of last resort.

In targeting protests that disrupt business, the federal and Tasmanian government­s miss the mark by 180 degrees. By far the darkest cloud over our future is carbon pollution driven by fossil fuel businesses – supported by government subsidies that add up to $500 billion globally each year.

The climate crisis needs leaders with the intelligen­ce to recognise complexity, the courage to make hard decisions, and enough determinat­ion and empathy to bring people with them on a long journey.

Instead, our government­s have gone for the simple, empty answer. “Lock ’em up” is their response to crime and civil disobedien­ce. The mantra for climate change is “We are meeting our targets”.

Simpletons are in charge. God help us.

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