Canada’s unprecedented fire season burns into fall...

[Fred Bloggs]

The fires are a HUGE increase ( jump actually ) in burning acreage even for Canada. That\'s quite a lot of lost carbon sequestration for decades, and quite a lot of GHG emission with atmospheric persistence lasting for centuries. If it was just Canada, that would be one thing, but when it\'s happening all over the world, you have a serious problem on your hands.

https://www.msn.com/en-us/weather/topstories/canada-s-unprecedented-fire-season-burns-into-fall/ar-AA1heX0s?ocid=weather-verthp-feeds

 

[Anthony William Sloman]

On Tuesday, September 26, 2023 at 10:47:17 PM UTC+10, Fred Bloggs wrote:

The fires are a HUGE increase ( jump actually ) in burning acreage even for Canada. That\'s quite a lot of lost carbon sequestration for decades, and quite a lot of GHG emission with atmospheric persistence lasting for centuries. If it was just Canada, that would be one thing, but when it\'s happening all over the world, you have a serious problem on your hands.

https://www.msn.com/en-us/weather/topstories/canada-s-unprecedented-fire-season-burns-into-fall/ar-AA1heX0s?ocid=weather-verthp-feeds

But not a lot of extra CO2 in the atmosphere. It certainly hasn\'t swamped the usual seasonal variation.

https://gml.noaa.gov/ccgg/trends/

As an Australian, I guess I\'m obliged to present the Cape Grim data as well.. The latest number there is for this July, when Canada was already burning with some enthusiasm.

https://www.csiro.au/en/research/natural-environment/atmosphere/latest-greenhouse-gas-data

--
Bill Sloman, Sydney

 

[John Larkin]

On Tue, 26 Sep 2023 05:47:11 -0700 (PDT), Fred Bloggs
<bloggs.fredbloggs.fred@gmail.com> wrote:

The fires are a HUGE increase ( jump actually ) in burning acreage even for Canada. That\'s quite a lot of lost carbon sequestration for decades, and quite a lot of GHG emission with atmospheric persistence lasting for centuries. If it was just Canada, that would be one thing, but when it\'s happening all over the world, you have a serious problem on your hands.

https://www.msn.com/en-us/weather/topstories/canada-s-unprecedented-fire-season-burns-into-fall/ar-AA1heX0s?ocid=weather-verthp-feeds

The long-term average of trees burned is a constant fraction of trees
grown. The scientific principle is called \"conservation of carbon.\"

Humans change the fire duty cycle.

 

[Anthony William Sloman]

On Wednesday, September 27, 2023 at 12:33:44 AM UTC+10, John Larkin wrote:

On Tue, 26 Sep 2023 05:47:11 -0700 (PDT), Fred Bloggs
bloggs.fred...@gmail.com> wrote:

The fires are a HUGE increase ( jump actually ) in burning acreage even for Canada. That\'s quite a lot of lost carbon sequestration for decades, and quite a lot of GHG emission with atmospheric persistence lasting for centuries. If it was just Canada, that would be one thing, but when it\'s happening all over the world, you have a serious problem on your hands.

https://www.msn.com/en-us/weather/topstories/canada-s-unprecedented-fire-season-burns-into-fall/ar-AA1heX0s?ocid=weather-verthp-feeds

The long-term average of trees burned is a constant fraction of trees grown. The scientific principle is called \"conservation of carbon.\"

From that point of view we don\'t care whether the tree burn or rot. They end up a CO2 in any event. The carbon tends to be tied up in a tree for longer if the tree lasts long enough to rot.

> Humans change the fire duty cycle.

So do quite a few more natural effects.

--
Bill Sloman, Sydney

 

[John Robertson]

On 2023/09/26 7:56 a.m., Anthony William Sloman wrote:

On Wednesday, September 27, 2023 at 12:33:44 AM UTC+10, John Larkin wrote:
On Tue, 26 Sep 2023 05:47:11 -0700 (PDT), Fred Bloggs
bloggs.fred...@gmail.com> wrote:

The fires are a HUGE increase ( jump actually ) in burning acreage even for Canada. That\'s quite a lot of lost carbon sequestration for decades, and quite a lot of GHG emission with atmospheric persistence lasting for centuries. If it was just Canada, that would be one thing, but when it\'s happening all over the world, you have a serious problem on your hands.

https://www.msn.com/en-us/weather/topstories/canada-s-unprecedented-fire-season-burns-into-fall/ar-AA1heX0s?ocid=weather-verthp-feeds

The long-term average of trees burned is a constant fraction of trees grown. The scientific principle is called \"conservation of carbon.\"

From that point of view we don\'t care whether the tree burn or rot. They end up a CO2 in any event. The carbon tends to be tied up in a tree for longer if the tree lasts long enough to rot.

Humans change the fire duty cycle.

So do quite a few more natural effects.

There was an interesting interview on CBC radio this morning - where a
tree planter was talking about the types of trees she was planting a
number of years ago...Black Spruce. Sometimes called Candle Trees in the
forest fighting community as they are so easy to light. Natural forest
regrowth sees a lot of Alder and other fire-resistant new growth, but
all that is cut down for planting the fast growing trees.

We have brought a fair bit of this on ourselves - there have been
reports year after year about better replanting practices for our
forests and governments have been ignoring them looking for a quick
return on investment.

There was a big report done around 2002 here in BC after our previous
bad fire summer, totally ignored by all parties - and they now want to
do another review, which will make the same recommendations, that will
be ignored yet again.

I\'ve known a number of foresters since I came to BC in the 70s, and
every one of them complained about the planting practices here and how
stupid it was and how the fires would be worse because of the practices.

And those practices didn\'t work out so well this year.

John :-#(#