by Terry Schulze
I was fascinated by Patrick Moore’s comment about CO2 at 150 ppm and how the plants would die. I went and did some research and sure enough he’s right. Here’s a bit from my research –
Atmospheric CO2 is not alarmingly high, it is too low for optimal plant growth and alarmingly low for the survival of carbon-based terrestrial life. The real danger is not too much CO2 – it is CO2 starvation. Over geologic time, CO2 is ~permanently sequestered in carbonate rocks.
Plants evolved at atmospheric CO2 concentrations of 2000 ppm and greater, and many grow best at about 1200 ppm CO2 – about 3 times current levels. That is why greenhouse operators maintain 1000-1200 ppm CO2 in their greenhouses.
Major food crops (except corn) use the C3 photosynthetic pathway, and die at about 150 ppm from CO2 starvation – that is just 30 ppm below the minimum levels during the last Ice Age, which ended just 10,000 years ago – “the blink of an eye” in geologic time. Earth came that close to a major extinction event.
During one of the next Ice Ages, unless there is massive human intervention, atmospheric CO2 will decline to below 150 ppm and that will be the next major extinction event – not just for a few species but for ~all complex terrestrial carbon-based life forms.
www.cairnsnews.org 
Greetings Cairnsnews Editor,
Your ‘Greenpeace’ editorial was rational and concise, your pragmatism exemplary. I shall now monitor your objective observations with zeal and ideological affinity. In fraternal regard, Linda Cleymans
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Instead if shaming Patrick Moore , you actually show how weak your argument is and how low you go in lack of understanding
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Thats a rotten setup and he did right to leave this shit of a reporter, its probably not dangerous to drink a liter of vape liquid on paper but you dont do it as a stunt. And its not about persona , but facts , so its not an argument but a fabricated setup.
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He also makes an ass of himself claiming to be a Co- Founder of Green Peace, according to the original members he was an early member but not a Co-Founder, maybe he imagined that like he imagines a lot of things after he’d drank some Glyphosate! PS. Ed and as usual you’re wrong I haven’t voted for a major party for years these days I vote for an independent who’s policies I like and who isn’t affiliated with any of the parties.
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Well articulated Terry but Robert is an ALP/Greens spokesman with dubious connections. He has been accused of being a troll many times by upset readers but we tolerate him because few take any notice of his sometimes poorly-aimed rants.
Editor
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Terry you’ve got to be careful with Patrick, he’s ok when he’s sober but after he’s been on the Roundup he comes out with some weird shit!
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Robert, I’ve seen that video before. Moore made an ass out of himself in regards to Roundup. However, this is about ‘Climate Change’ and CO2, what did he get wrong in regards to that issue?
Attack the science, not the man. If he is wrong on CO2, then post the research you have in regards to that issue.
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Interesting… Nice to see some common sense from Greenpeace for a change .
Cheers!
*Mike Holt* *You can’t beat someone who never quits*
Founder Advance Australia HQ http://advance-australia.com.au/ Ph: 0412 677 223 – available on WhatsApp / Line / Telegram Skype ID: bkkwriter My facebook page: https://www.facebook.com/cirnowaustralia/ Twitter Account: @AdvanceAusHQ Our websites: https://advance-australia.com.au/ & http://www.cirnow.com.au/ Our Facebook Pages: @cirnowaustralia & @advanceaustraliahq Listen to our Podcasts: *https://www.australianpatriotradio.com/ * https://www.thebloodyaussiebattler.com
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I was fascinated by Patrick Moore’s comment about CO2 at 150 ppm and how the plants would die. I went and did some research and sure enough he’s right. Here’s a bit from my research –
Atmospheric CO2 is not alarmingly high, it is too low for optimal plant growth and alarmingly low for the survival of carbon-based terrestrial life. The real danger is not too much CO2 – it is CO2 starvation. Over geologic time, CO2 is ~permanently sequestered in carbonate rocks.
Plants evolved at atmospheric CO2 concentrations of 2000 ppm and greater, and many grow best at about 1200 ppm CO2 – about 3 times current levels. That is why greenhouse operators maintain 1000-1200 ppm CO2 in their greenhouses.
Major food crops (except corn) use the C3 photosynthetic pathway, and die at about 150 ppm from CO2 starvation – that is just 30 ppm below the minimum levels during the last Ice Age, which ended just 10,000 years ago – “the blink of an eye” in geologic time. Earth came that close to a major extinction event.
During one of the next Ice Ages, unless there is massive human intervention, atmospheric CO2 will decline to below 150 ppm and that will be the next major extinction event – not just for a few species but for ~all complex terrestrial carbon-based life forms.
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