Posted by Co2sceptic on May 14th 2012
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CCN Australia's Climate Summit: Christine Milne (Australian Greens) - YouTube link

Published on May 13, 2012 by antonylewis66

Friday Evening Political Forum: Beyond the Carbon Price
Part 7 of 8: Christine Milne, leader of the Australian Greens, delivers an inspiring call to action as the consequences of climate change are clearly upon us while economically we are continuing a business as usual policy.

The action required is urgent and we need to drive an increase in action through increasing the RET (Renewable Energy Target) in 2012, ensuring Climate Change is a major topic of the 2013 election and immediately stop the expansionist policy of developing coal, gas and coal seam gas mining.

Greens leader Christine Milne admits the global warming scare has lost “momentum”. Her new tactic: to blame extreme weather events such as Cyclone Yasi on man-made global warming.

We have to personalise the impacts. Everybody has been pussyfooting around the fact that when we have an extreme weather event like Cyclone Yasi, ...because there is such pushback of saying ‘we can’t be sure that it’s climate related’ and so people back off it, that has been a major loss of momemtum in the campaign around Australia, that we’ve failed to name the connection and it has got to be named, and we’ve got to get on the radio… The scientific reports are saying it all the time. It’s a question of intensity.

But hang on. What happened to “respecting the science”? Even the Climate Commission, aggressively pro-warming, admits there is no proof that global warming has changed cyclone behaviour:

Andrew Bolt: “People like Tim Flannery have blamed man made warming for causing more and worse hurricanes and cyclones, but according to your own recent report there’s no proof of that at all is there?”

Professor Will Steffen: “ No, there’s no statistically significant evidence that we’ve seen a change in the behavior of tropical cyclones around the world most experts agree however, that we will see an increase in intensity in these cyclones as the warming continues.”

Andrew Bolt: “But as yet your own report says it’s not possible (and I’m quoting) to attribute any aspect of changes in cyclone behavior, frequency, intensity, rainfall climate change.”

Professor Will Steffen: “That is correct”

The Bureau of Meteorology has also had to concede that early scares about more and worse cyclones have not yet come to pass, and probably won’t:

Since that time there has been a growing number of studies that indicate a consistent signal of fewer tropical cyclones globally in a warmer climate… Substantial disagreement remains between climate models concerning future changes in tropical cyclone intensity, although the highest resolution models show evidence of an increase in tropical cyclone intensity in a warmer world.

There have been three recent studies producing projections for tropical cyclone changes in the Australian region. Two suggest that there will be no significant change in tropical cyclone numbers off the east coast of Australia to the middle of the 21st century. The third study, based on the CSIRO simulations, shows a significant decrease in tropical cyclone numbers for the Australian region especially off the coastline of Western Australia. The simulations also show more long-lived eastern Australian tropical cyclones although one study showed a decrease in long-lived cyclones off the Western Australian coast.

Each of the above studies finds a marked increase in the severe Category 3 - 5 storms.

Note: Cyclone Yasi was just a force 3 cyclone when it hit.

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What’s more, there’s no sign at all in the cyclone activity in Australia of a global warming signal - unless it’s a decline in cyclones.

Milne has now left the science behind. Reason? Because it doesn’t back her global warming scare.

In fact, if Milne really wants to “personalise the impacts” of global warming, she should issue a press release every week that goes by without another cyclone in Australia and blame global warming for not making things worse.


(Thanks to reader Craig.)