Brisbane Local Food

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Wow! This is a great summary of the dynamics of climate and soil health with Walter Jehne -- Microbiologist, climate scientist and founder of Healthy Soils Australia.

While a long article it warrants study ..and reading a few times..

I highly recommend the effort!

It will surely challenge your beliefs on what is happening outback and in your soil...and what pans out globally.

"JEHNE. The only carbon drawdown process that nature’s got involves green plants taking up CO2 and water and sunlight and making sugars through photosynthesis. It’s wonderfully efficient. Where humans are critical is that we have agency over what happens to that molecule of carbon fixed by plants. For every CO2 molecule that a plant takes out of the air and turns into sugar, and then into cellulose or lignin, there are only two things that can happen. It can either be oxidized back to CO2, or turned into stable soil carbon. We call this the ABC of carbon fixation. A is about agriculture and maximizing the growth of green plants. B is about burning, and ensuring that not all of that carbon is rapidly burned or oxidized back to CO2. How we do that is through C, carbon biosequestration, by making sure that a big slice of the carbon fixed by plants is turned into humates and glomalin, stored in soil to enhance soil structure and build the cathedral we talked about and beneficial biosystems. It’s really about that B to C ratio — burning less and biosequestering more as stable soil carbon. Burning and oxidizing refer to the process of turning organic carbon into the oxidized CO2 form. Burning involves active flames; oxidation is like rust. Everything we’ve done in agriculture has burned off the soil carbon to try to mineralize more nutrients, whether it’s burning, clearing, tillage, over-fertilization, biocides, or bare fallowing land. In the process, we have cannibalized that soil capital. Organic agriculture is all about saying no to all that. Instead, we must use that carbon as the structural building block for our cathedrals, for increasing soil biofertility, microbial activity, surface areas and moisture-holding capacity, thus rebuilding healthy, productive agricultural systems. "

Read the interview in full here...

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This is basically the best info on learning about our climate change problems, Dave.  I have downloaded the Acres magazine so I can read it a few times.  I would love to have a summary in layman's words.  Thanks for sharing.  My back garden seems to make fungi all over the ground. Let's hope it is doing the same underground. It basically gives the reason why we have micro-climates in dense plantings and different levels of moisture in our forests, from ground water to humidity in the air and above in the atmosphere.  If I read it right it is the water level in the air that lowers the damage of climate change. Is this correct??

Do not think CO2 has a lot to do with climate change but more to do with population and development have a look at changes in the last 30 years  where farmland is now covered in roads and houses  and Australia has a small population compared to other countries like China .

NASA says "Carbon dioxide (CO2) is an important heat-trapping (greenhouse) gas, which is released through human activities such as deforestation and burning fossil fuels, as well as natural processes such as respiration and volcanic eruptions. The first graph shows atmospheric CO2 levels measured at Mauna Loa Observatory, Hawaii, in recent years, with average seasonal cycle removed. The second graph shows CO2 levels during the last three glacial cycles, as reconstructed from ice cores."  https://climate.nasa.gov/vital-signs/carbon-dioxide/

Global warming is turning into an industry does not seem to be doing anything to help just creating income for those involved like all flying to Paris staying in 5 star hotels .How about converting all cars to e85 fuel  and purchase all the cheap sugar India are trying to sell and convert to fuel but here in Queensland they are trying to say e10 fuel is going to make a difference.

If they want  Carbon sequestration how about getting plastic waste and car Tyres and placing under ground  and in the future  dig up  if there is a need as it looks like the government is wanting to incinerate plastic waste .

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