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Rejoice, the Earth Is Becoming Greener

Waddy said:
We're only at 400ppm CO2. So plants can benefit greatly for a long long time, since we will never approach 2000ppm.

Nutrient deficiency in plants is a whole 'nuther problem. Nothing to do with CO2. Has to do with depleted soils and breeding for size only,around the globe. Some plants are down more than 50% in major nutrients.
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I wouldn't say never, because it has been that high and much higher in the past. However, it is highly unlikely. The ideal range for plants is somewhere between 1,200 and 1,500 ppmV. According to OSHA, humans don't start having an issue with atmospheric CO2 until it reaches 30,000 ppmV, which is 3% of the total atmosphere.

With regard to the nutrient deficient plants this was done under laboratory conditions, with the soil containing the exact same nutrient content. The only thing that changed was the amount of atmospheric CO2. Once the atmospheric CO2 began to exceed ~1,800 ppmV the nutrients iron and zinc began to decline. Too much CO2 appears to interfere with the plants ability to absorb nutrients. Not only resulting in a smaller yield but also a plant that is less nutritious.
 
Glitch said:
I wouldn't say never, because it has been that high and much higher in the past. However, it is highly unlikely. The ideal range for plants is somewhere between 1,200 and 1,500 ppmV. According to OSHA, humans don't start having an issue with atmospheric CO2 until it reaches 30,000 ppmV, which is 3% of the total atmosphere.

With regard to the nutrient deficient plants this was done under laboratory conditions, with the soil containing the exact same nutrient content. The only thing that changed was the amount of atmospheric CO2. Once the atmospheric CO2 began to exceed ~1,800 ppmV the nutrients iron and zinc began to decline. Too much CO2 appears to interfere with the plants ability to absorb nutrients. Not only resulting in a smaller yield but also a plant that is less nutritious.
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Our facts don't disagree. CO2 is far from the concentrations that would be detrimental.

I understand that particular plant nutrient uptake study. And it is probably accurate, to a point. But somewhat misleading if the soil used in the study was rich in nutrients to begin with. Because, worldwide the soil is so played out that those nutrients have been much depleted, and are therefore not available. What we do now is dump lots of nitrogen to get great top growth, but does nothing to put minerals and other nutrients back into the soil.

fruits and vegetables grown decades ago were much richer in vitamins and minerals than the varieties most of us get today. The main culprit in this disturbing nutritional trend is soil depletion: Modern intensive agricultural methods have stripped increasing amounts of nutrients from the soil in which the food we eat grows. Sadly, each successive generation of fast-growing, pest-resistant carrot is truly less good for you than the one before......The Organic Consumers Association cites several other studies with similar findings: A Kushi Institute analysis of nutrient data from 1975 to 1997 found that average calcium levels in 12 fresh vegetables dropped 27 percent; iron levels 37 percent; vitamin A levels 21 percent, and vitamin C levels 30 percent. A similar study of British nutrient data from 1930 to 1980, published in the British Food Journal,found that in 20 vegetables the average calcium content had declined 19 percent; iron 22 percent; and potassium 14 percent. Yet another study concluded that one would have to eat eight oranges today to derive the same amount of Vitamin A as our grandparents would have gotten from one.
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Dirt Poor: Have Fruits and Vegetables Become Less Nutritious? - Scientific American
 
Lord of Planar said:
That island must be sinking, because a linear trendline through the data gives a sea rise of 9.1 mm per year.

View attachment 67269144
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New Orleans has a Tide Gauge only since Katrina and it says 19 mm/yr.
But that's only a 13 year record. I wanted one with a longer record.
Yes the place is sinking and they have a problem.
 
Lord of Planar said:
That island must be sinking, because a linear trendline through the data gives a sea rise of 9.1 mm per year.

View attachment 67269144
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Steve Case said:
New Orleans has a Tide Gauge only since Katrina and it says 19 mm/yr.
But that's only a 13 year record. I wanted one with a longer record.
Yes the place is sinking and they have a problem.
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Few things are as certain as that in 100 years the city of New Orleans will no longer exist in its present location.
 
Deuce said:
Too bad food crops respond negatively to the changes in climate, stronger weeds, and more plentiful pest insects.

But hey, maybe we can just eat grass and trees.
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BS . Crop yields have increased substantially since the invention of AGW mostly due to increased CO2 and despite deforestation overall planetary green biomass has increased too over the last 35 years for the same reason

Deserts 'greening' from rising CO2 - CSIRO
 
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UGLY. Wish those were real feel numbers......
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Sent from my SM-G892A using Tapatalk
 
CLAX1911 said:
Everybody knows. Every smug self-righteous cultist in your religion has linked to this.

Sure the climate changes been changing probably since its existence.
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NASA and every science agency on the planet disagrees with you
 
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