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Volume 21: July 2018
New material posted nearly every day!

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Last 15 Postings

The Combined Effects of Elevated CO2 and Drought on Yellow Poplar Seedlings (16 July 2018)
A 210 ppm enrichment of atmospheric CO2 was strong enough to fully ameliorate the adverse effects of water shortage on this important timber species...

Impacts of Elevated CO2 on Lead Contaminated Soils (13 July 2018)
At higher atmospheric CO2 concentrations, black locust seedlings removed greater amounts of lead from lead-contaminated soils...

A Freshwater Macrophyte's Response to Elevated Temperature and Elevated CO2 (12 July 2018)
Even under quite extreme, and unrealistic, temperature and atmospheric CO2 conditions of +4.5°C and +850 ppm above ambient, this aquatic plant responds positively by producing greater mass...

The Interactive Effects of Elevated CO2 and O3 on Chinese Tallow Tree (11 July 2018)
The positive growth effects of CO2 enrichment were powerful enough to fully ameliorate the biomass reductions induced by elevated O3...

Plant Growth Database (10 July 2018)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Mungbean (Dey et al., 2017). To access the entire database, click here.

Projections of Future Peanut Yields in Senegal (9 July 2018)
When the positive impacts of elevated CO2 on crop growth are included, simulations of future climate change return "modest positive increases in peanut yields for Senegal"...

The Effects of Elevated CO2 and Temperature on Rice Nutrient Levels (6 July 2018)
Results of this analysis indicate there was no clear trend or signal to support the notion that any of the plant nutrition measures analyzed by the authors (plant nutrient concentration, plant nutrient content or nutrient use efficiency) will significantly change in a world of both rising temperature and atmospheric CO2...

The Capacity of a Damselfish to Adapt to Ocean Acidification (5 July 2018)
When scientists allow for adaptation and incorporate real-world examples of such into their ocean acidification studies (e.g., developmental plasticity and/or transgenerational acclimation), the negative outcomes observed under acute CO2 treatments are lessened or absent, as observed in the present study. Recognizing these facts, and the much longer period of time that species will have to adapt (and even evolve) to rising CO2 levels in the future, it is abundantly clear that the presently-espoused alarmist view of ocean acidification harming marine life and driving species toward extinction is premature and unrealistically negative. And it will remain in this sorry state until there is an adequate amount of research conducted to incorporate the adaptive and evolutionary response of marine organisms to elevated CO2 across multiple generations...

The Impact of Elevated CO2 on Arabidopsis (4 July 2018)
In addition to enhancing several growth-related parameters, elevated CO2 increases the carotenoid content in recently emerged younger leaves...

The (Non) Effect of Elevated Atmospheric CO2 on Human Cognitive Performance and Decision Making (3 July 2018)
From time to time, concerns emerge in the global warming debate that rising atmospheric CO2 is directly harming human health and/or impairing cognitive performance. The present review highlights research examining the latter of these two claims, finding that, even at values more than 36 times the present CO2 concentration of the atmosphere there is no discernible CO2 effect on human cognitive performance or decision making...

Plant Growth Database (3 July 2018)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Soybean (Singh and Reddy, 2017). To access the entire database, click here.

Impacts of Elevated CO2 on a Freshwater Algae (30 June 2018)
Rising atmospheric CO2 will not only improve the photosynthesis and growth rate of this aquatic species, it will strengthen its defenses against predation, thereby helping to stabilize the aquatic food web...

The Impact of Rising Atmospheric CO2 on Spruce Tree Growth in Southwestern China (29 June 2018)
The modern rise in atmospheric CO2 stimulated the growth of spruce trees by 46.6% and their intrinsic water use efficiency by 30.4% since 1851...

A 4000-Year Record of Climate and War in China (28 June 2018)
A new chironomid-based temperature reconstruction from the northeastern margin of the Chinese Loess Plateau reveals the presence of multiple warm and cold epochs over the past four millennia, the latter of which (cold periods) tended to produce more episodes of social unrest and war...

Can the Quantity of Crop Yields Increase Under Elevated CO2 Without Sacrificing Food Quality? (27 June 2018)
According to the results of this study, it appears that when it comes to rising atmospheric CO2, there is a way that we can have our proverbial cake and eat it too, enjoying both the forecasted increases in crop yields to feed the ever-growing world population without sacrificing plant nutritional quality. And that is great news worth reporting!...

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