Why old-school climate denial has had its day, The Conversation,  Michael J. I. Brown, Associate professor in astronomy, Monash University, June 13, 2019  The Coalition has been re-elected to government, and after six years in office it has not created any effective policies for reducing greenhouse emissions. Does that mean the Australian climate change debate is stuck in 2013? Not exactly.While Australia still lacks effective climate change policies, the debate has definitely shifted. It’s particularly noticeable to scientists, like myself, who were very active participants in the Australian climate debate just a few years ago.

The debate has moved away from the basic science, and on to the economic and political ramifications. And if advocates for reducing greenhouse emissions don’t fully recognise this, they risk shooting themselves in the foot.

The old denials

Old-school climate change denial, be it denial that warming is taking place or that humans are responsible for that warming, featured prominently in Australian politics a decade ago. In 2009 Tony Abbott, then a Liberal frontbencher jockeying for the party leadership, told ABC’s 7.30 Report:

I am, as you know, hugely unconvinced by the so-called settled science on climate change.

Climate “sceptics” have always been very keen on cherrypicking data. They would make a big fuss about some unusually cold days, or alleged discrepancies at a handful of weather stations, while ignoring broader trends. They made claims of data manipulation that, if true, would entail a global conspiracy, despite the availability of code and data.

Incorrect predictions of imminent global cooling were made on the basis of rudimentary analyses rather than sophisticated models. Cycles were invoked, in a manner reminiscent of epicycles and stock market “chartism” – but doodling with spreadsheets cannot defeat carbon dioxide.

That was the state of climate “scepticism” a decade ago, and frankly that’s where it remains in 2019. It’s old, tired, and increasingly irrelevant as the impact of climate change becomes clearer.

Partisans

Climate “scepticism” was always underpinned by politics rather than science, and that’s clearer now than it was a decade ago.

Several Australian climate contrarians describe themselves as libertarians – falling to the right of mainstream Australian politics. David Archibald is a climate sceptic, but is now better known as candidate for the Australian Liberty Alliance, One Nation and (finally) Fraser Anning’s Conservative National Party. The climate change denying Galileo Movement’s claim to be to be non-partisan was always suspect – and now doubly so with its former project leader, Malcolm Roberts, representing One Nation in the Senate.

there are economic arguments against new coalmines and new mines may not deliver the number of jobs promised. Australian power companies, unlike government backbenchers and Clive Palmer, have little enthusiasm for new coal-fired power stations. But the fact remains that these economic issues are largely outside the domain of scientists.

Debates about climate policy remain heated, despite the scientific basics being widely accepted. Concerns about economic costs and jobs must be addressed, even if those concerns are built on flawed assumptions and promises that may be not kept. We also cannot forget that climate change is already here, impacting agriculture in particular.