The SMH journalist writes about a cold snap hitting the East Coast of Australia in July 2015:
Proof of the big chill will be the extent of regions across Tasmania, Victoria and NSW experiencing zero temperatures, the Bureau of Meteorology said.
A belt of low pressure systems is a fairly permanent feature of Antarctica. One of those lows - at a latitude of about 55-60 south - is currently to the south of Tasmania and further from the Antarctic coast than usual, Dr Trewin said.
What would cause this low pressure zone to extend further from the Coast of the Antarctic than usual? Could it be a large chunk of ice melting?
My question is: Are Southern Hemisphere 'Polar Blasts' caused by global warming?