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Volume 23:  October 2020 Archive of CO2 Science Postings


The Impact of Elevated CO2 on a Key Antioxidant in Lettuce
(30 October 2020)
Chlorogenic acid, a "strong antioxidant that potentially reduces oxidative damage in human cells," was found to strongly increase in lettuce in response to higher atmospheric CO2 concentrations...

Plant Growth Database (29 October 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Fenugreek (Hozzein et al., 2020). To access the entire database, click here.
The Response of Juvenile Pink Salmon to Ocean Acidification (28 October 2020)
No physiological impairment of this important fish species was observed to result from higher levels of pCO2, alone or in combination with the additional stresses of hypoxia and temperature...

Plant Growth Database (27 October 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Swiss Chard (Singh et al., 2020). To access the entire database, click here.

Investigating Plant-herbivore Interactions Under Drought and Heat Stress
(26 October 2020)
A new study reveals plant defenses against an aphid herbivore are strengthened in response to these two abiotic stresses, which stresses also act to reduce key life-related parameters in the aphid, suggesting "fewer resources will need to be dedicated to remediating aphid infestations of wheat"...

Temperature-related Excess Mortality in Twelve German Cities
(23 October 2020)
Once again, rigorous analysis of real-world data reveal cold temperatures are much greater a threat to human mortality than warm temperatures. In this study deaths attributed to cold weather were nearly seven times that attributed to hot weather!...

Plant Growth Database (22 October 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Lettuce (Singh et al., 2020). To access the entire database, click here.
Impacts of CO2 on Two Grapevine Cultivars (21 October 2020)
A mere 80 ppm increase in CO2 during daylight hours was sufficient to increase the berry weight of the two cultivars by 17-21% without any sacrifice to berry quality...

Plant Growth Database (20 October 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Basil (Singh et al., 2020). To access the entire database, click here.

A CO2-induced Amelioration of Temperature Stress on Potato Yields
(19 October 2020)
Elevated temperatures (2°C above ambient throughout the growing season) reduced potato yields by 29%. The growth-enhancing effects of elevated atmospheric CO2, when added to the elevated temperature treatment, however, were significant enough to totally ameliorate the growth retarding influence of temperature stress and increase yields by 13% relative to control conditions...
The Resilience of Sea Urchin Larval Settlement Under Ocean Acidification (16 October 2020)
The results of this study indicate that E. chloroticus larvae are resilient to reduced seawater pH levels well beyond that predicted for the future (i.e. pH < 7.6)...

Plant Growth Database (15 October 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for River Mangrove (Manea et al., 2020). To access the entire database, click here.
Carbon Dioxide and Salinity Interactions on Four Sorghum Genotypes (14 October 2020)
Elevated CO2 improved plant growth and helped reduced the growth-retarding effects of salinity in the four sorghum cultivars examined in this study...

Plant Growth Database (13 October 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Knobby Club Rush (Manea et al., 2020). To access the entire database, click here.

How Dangerous (or uncommon) is a Temperature Rise of 2°C above Preindustrial Values?
(12 October 2020)
A new temperature proxy from the Mediterranean reveals times when temperatures eclipsed the so-called dangerous zone, reaching historic values that were more than 2°C greater than that observed during recent preindustrial times. Is it any surprise that, rather than harming or destroying humanity, the warmer temperatures actually helped human society to flourish? Such observations indicate it is the height of stupidity to think that humanity could not collectively experience temperatures within the so-called dangerous zone today and not come out on top, especially considering all of the technological advancements that have occurred over the past century...

Exploring African Vegetation Change Since 1982
(9 October 2020)
Despite increasing in population by 850 million persons and being subjected to the many ecosystem pressures a population increase of that size can cause, and notwithstanding numerous ominous climate-related projections of ecosystem demise from global warming, across large regions of Africa vegetative productivity today has reached the highest values ever observed in the satellite record. And this great greening of Africa has largely been brought about by the very factor alarmists say should be causing a demise -- rising atmospheric CO2!...

Plant Growth Database (8 October 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Lettuce (Garmendia et al., 2020). To access the entire database, click here.

Eurasian Snowfall Trends of the Past Two Decades
(7 October 2020)
If global warming is getting worse like alarmists contend, then signs of its predicted effects should be evident all across the globe, including data on snow cover. However, real world data presented in the study examined here reveal nothing of the sort is presently underway...

Plant Growth Database (6 October 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Tomato> (Karim et al., 2019). To access the entire database, click here.

A CO2-induced Amelioration of Drought Stress in Coffee Plants
(5 October 2020)
Under progressively worsening simulated drought conditions, growth and water use efficiency-related benefits from CO2 fertilization were able to fully ameliorate the negative impacts of drought experienced at ambient CO2 levels...

The Response of the Chilean Oyster to Ocean Acidification and Warming
(2 October 2020)
A decline in seawater pH of 0.3 units, in conjunction with seawater warming of up to 10°C, had no negative physiological impact on this key ecological and economic marine species. In fact, the highest scope for growth value (a measure of the energy available for growth and reproduction) measured in the various treatments was observed under the highest temperature and lowest seawater pH conditions, which observation is just the opposite of what ocean acidification alarmists claim should happen...

Plant Growth Database (1 October 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Broccoli (Almuhayawi et al., 2020). To access the entire database, click here.