Bushfires and fuel reduction

[David]

^ Woods, did you read my post? I literally just referenced the same source twice!

[Woods]

Did you understand mine before you went off on your rant?

The point of my post was that its not climate change causing the bush fires. Its arsonists. You seem to in strident agreement with me if you're quoting the same source.

[stui magpie]

I think the word "cause" is part of the problem, there can only be a small minority of idiots who actually think that climate change is the actual cause, but they are noisy on social media.

As Woods said, the forest doesn't spontaneously combust because of hot weather (although haystacks can, different story)

I read somewhere that the ignition of bushfires is roughly in 3rds.

1/3 arson
1/3 accident, including camp fires, fuel reductions out of control, cigarettes out car windows etc
1/3 lightening strike.

Regardless of the ignition source, without fuel there's no firer. The more fuel, the greater intensity, the drier the fuel (this is where global warming kicks in) the hotter it burns.

All bushfires start with ground fuel, if it gets hot enough it climbs into the tree canopy and runs away, burning straight over land where the ground fuel has been eliminated and, provided there's a decent breeze, sending flying embers that light more ground fuel ahead of it.

Once the fire intensity passes a certain point, you can't fight it, the only option is to get ahead of it, backburn and make firebreaks.

Bushfires start with ground fuel, with climate change / global warming they start in spring, without climate change but the same amount of fuel, they start in late January or early Feb

Anyone who can, I suggest they get up around Kinglake which was devastated by the Black Saturday fires in 2009 and see what the ground fuel situation looks like because if what I read is correct and there's been no hazard reduction work done in near 10 years, it's odds on to ignite again next month

[David]

[think positive]

[David]

[Morrigu]

https://www.news.com.au/technology/onli ... 28c004947a

[watt price tully]

https://www.news.com.au/technology/online/social/firefighter-slams-outright-lies-about-bushfires-as-experts-expose-bots-and-bizarre-conspiracies/news-story/239e251201616f686a5e4d28c004947a

Exactly.

[David]

[think positive]

[watt price tully]

[PyreneesPie]

I read somewhere that the ignition of bushfires is roughly in 3rds.

1/3 arson
1/3 accident, including camp fires, fuel reductions out of control, cigarettes out car windows etc
1/3 lightening strike.

Just as aside, because of changing weather patterns, we are now experiencing "dry" thunderstorms far more often ie thunder and lightning without rain. This is what caused a fire to start on my daughter's farm just before Christmas.
So, presumably something can be done to reduce factors 1 and 2, but the dry lightning factor is beyond our immediate influence. It is caused by a lack of moisture in the air, which in turn is the result of monsoonal systems arriving late, which is caused by climate change.

[watt price tully]

I read somewhere that the ignition of bushfires is roughly in 3rds.

1/3 arson
1/3 accident, including camp fires, fuel reductions out of control, cigarettes out car windows etc
1/3 lightening strike.

Just as aside, because of changing weather patterns, we are now experiencing "dry" thunderstorms far more often ie thunder and lightning without rain. This is what caused a fire to start on my daughter's farm just before Christmas.
So, presumably something can be done to reduce factors 1 and 2, but the dry lightning factor is beyond our immediate influence. It is caused by a lack of moisture in the air, which in turn is the result of monsoonal systems arriving late, which is caused by climate change.

Correct weight.

Climate change is the context and a general cause while arsonists, lightening, lack of burnoff for whatever reason are some of the causes either specfic or contributory.

[watt price tully]

[David]