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Wildfires 2020 Thread

Re: Wildfires 2020 Thread

Unread postby rockdoc123 » Tue 14 Jan 2020, 13:30:35

That's stupid that it's either weather or climate change: They're both two sides of the same coin.


whats stupid is you thinking that is the case, especially since I don't know how many times someone on this site is being reminded that because they are having a period of very hight temperatures or a period of cold temperatures that is weather, not climate. The argument that everyone has been making is that gradually increased temperatures from climate change have caused drought and will result in more forest/bush fires. As I've shown for Australia the evidence suggests the opposite. Does weather come into play, of course it does. High winds will drive fires and a lack of downpours will not help extinguish existing fires. But weather is unpredictable and the same weather could have been around several hundred years ago as it is today. Trends are what is required to make it climate.
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Re: Wildfires 2020 Thread

Unread postby Plantagenet » Tue 14 Jan 2020, 19:04:14

the same weather could have been around several hundred years ago as it is today.


Actually no. Several hundred years ago the world was in a cold climate period known as the Little Ice Age. While there were no thermometers in Australia we know it was cooler during the Little Ice Age through various climate proxy records like coral and tree rings, which provide annual records of past climate back through several millennia.


Trends are what is required to make it climate.


And indeed there is strong trend of warming in Australian climate records from decade to decade during the last 100+ years. There has been a sustained trend of warming, and the Australian national meteorological group estimates 2019 is the warmest year of the entire instrumental record, with annual temps for 2019 running an eye-popping 1.59°C above average.

I posted this information previously above ---with a link---, in case you missed it or somehow forget it.

Image
Australia is hot hot hot right now......the culmination of over a century long trend of warming climate.

Cheers!
"Our house is on fire" Greta Thunberg, 12/28/19

"The people in power should listen.....its them I'm criticizing" Greta Thunberg, 12/4/19
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Re: Wildfires 2020 Thread

Unread postby ROCKMAN » Wed 15 Jan 2020, 16:57:07

This is not an argument for or against man caused LONG TERM climate change (which I wrote as a possibility as an undergrad in 1972 when working on my BS in Earth Sciences).

What I wonder if Aussie MSM is ignoring the potential of widespread arson being behind much (if not most) of the current calamity. About 24 have been arrested for starting wild fires. Seems a rather large number to be just accidents. Everyone that has owned wild land knows the cheapest way to get rid of brush is by burning. As is common in south America done to open up land for agricultural expansion. Rather efficient in Aussie land to clear tens of millions of acres (though not very nice) given how few structures have been destroyed compared to those destroyed in CA's much smaller fires.

Just wondering.
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Re: Wildfires 2020 Thread

Unread postby rockdoc123 » Wed 15 Jan 2020, 17:23:29

Rockman, read up thread. The aboriginals had used fire to manage their lands as far back as they can remember and when immigrants showed up they learned that it was necessary to burn off dead crops and old tree droppings every year or risk have out of control fires. This has been documented numerous times in the literature and the experts in this subject matter in Aus are advocates. It is the government regulations that have kept land owners from controlled burning which has resulted in the enormous amount of fuel.

As an aside Australia has always been prone to bushfires. The issue is that you get a year with lots of rain which causes more growth and the following year that growth dies and dries out extremely rapidly because of the combination of wind and heat. If the fuel on the ground caused by this is not removed then fires are pretty much guaranteed. It has been like this back well over a hundred years so no need to invoke climate change.
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Re: Wildfires 2020 Thread

Unread postby ROCKMAN » Thu 16 Jan 2020, 12:30:36

Doc - Exactly. I'm sure you the big fire in Yellowstone some decades ago. Afterwards it was easy for the govt to conclude the major contributing factor was the prevention of major brush fires for decades loaded the forests with huge amount of fuel. Once it reached a tipping point major uncontrollable fires were inevitable. Afterwards the Feds started a regular program of "prescribed burns". I think that's the term used.

As you described same thing in south Texas...and probably other areas is the country: wetter then normal leads to a brush boom followed by normal arid periods and increased wild fires.

Personally I find it odd that some folk attribute a 1+ degree increase in temp as a cause for major wild fires. I've never found brush difficult to burn even during periodic LOWER than normal temps...much LOWER than several degrees below average. Rain patterns were much more a significant factor.
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Re: Wildfires 2020 Thread

Unread postby dohboi » Thu 23 Jan 2020, 06:02:12

Meanwhile as arguments continue there is a small (171ha) fire burning out of control a couple of miles from Parliament House. Every thing that been thrown at this fire within minuets due to the proximity of the airport, military assets and housing. Mind you another 5 of the fires have returned to Emergency warning levels as they are out of control.

https://esa.act.gov.au/emergency-warnin ... -crestwood

Meanwhile...

https://www.theguardian.com/australia-n ... lse-claims


Bots and trolls spread false arson claims in Australian fires ‘disinformation campaign’
[...]

Using a Twitter bot detection tool, he assessed a random sample for bot-like characteristics.

His preliminary analysis found there is likely a “current disinformation campaign” on Twitter’s #arsonemergency hashtag due to the “suspiciously high number of bot-like and troll-like accounts”.

He similarly found a large number of suspicious accounts posting on the #australiafire and #bushfireaustralia hashtags.

“Australia suddenly appears to be getting swamped by mis/disinformation as a result of this environmental catastrophe, and we are suffering the consequences in terms of hyped up polarisation and an increased difficulty and inability for citizens to discern truth,” Graham told the Guardian.
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Re: Wildfires 2020 Thread

Unread postby jedrider » Thu 23 Jan 2020, 15:43:19

ROCKMAN wrote:Personally I find it odd that some folk attribute a 1+ degree increase in temp as a cause for major wild fires.


Well, 'personally' 1+ degree certainly doesn't sound like much at all. But, evidently, it is 'very much':

I'm not a biologist/ecologist, but people like Guy McPherson who are, probably understand this more than I.

https://weather.com/science/environment/video/tiny-bugs-climate-change-killing-giant-sequoia-trees-in-california
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