Sydney: Smoke haze could come into play as New Zealand look to salvage some pride from their miserable tour of Australia in the third and final Test in Sydney this week.
With bushfires raging across New South Wales state, day two of the match on Saturday shapes up as the biggest challenge with temperatures forecast to soar and smoggy conditions expected.
The issue of smoke is a difficult one for officials, who currently rely on a mix of air quality guidelines from the International Cricket Council, state governments and the Australian Institute of Sport.
But there are inconsistencies on what is considered "unsafe", with Cricket Australia and the players' association currently working to develop better protocols around visibility and air quality.
It follows a Big Bash League match in Canberra being abandoned this month because of toxic bushfire haze.
Currently, it is up to the umpires to decide whether conditions are safe, without any formal framework for that decision.
With the first two Tests at Perth and Melbourne ending in heavy defeats inside four days, New Zealand will need all the help they can get.
Coach Gary Stead admitted the Black Caps were "beaten up by Australia again" in their 247-run Melbourne thrashing and they have had to go back to the drawing board.
"We've got to find some areas where we can keep chipping away, make improvements and put Australia under pressure for longer," he said.
"When you get put under pressure for the periods Australia have put us under, then you have to question what we're doing.
"Australia have three bowlers at 145 kph and a spinner (Nathan Lyon) that's taken over 300 Test wickets so you're always up against it. You don't get a reprieve and that's the hard thing for us."
