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Volume 23:  March 2020 Archive of CO2 Science Postings


A 167-year Precipitation Record from the Lower Yangtze River Basin
(30 March 2020)
Based on the data presented in this study, it would thus appear that late 20th century and early 21st century warming had a mitigating impact on the frequency of anomalous precipitation events in the lower Yangtze River basin, which conclusion is opposite that typically expected by climate alarmists...
Medicinal Constituents of Brazilian Ginseng are Enhanced Under Elevated CO2 (27 March 2020)
A key phytosteroid with multiple medicinal benefits is enhanced by 104% following CO2 enrichment to 1000 ppm for 45 days...

Plant Growth Database (26 March 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Soybean (Köhler et al., 2019). To access the entire database, click here.

Historic iWUE Trends in Far Northeastern China
(25 March 2020)
Since 1900, the intrinsic water use efficiencies of larch and pine trees have risen by 22.7% and 31.8%, thanks to the supposed twin evils of the radical environmental movement: rising temperatures and rising atmospheric CO2. How ironic is that?...

Plant Growth Database (24 March 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Cucumber (Dabu et al., 2019). To access the entire database, click here.
A Limited Response of a Deep-sea Coral to Ocean Acidification (23 March 2020)
After twelve months of exposure to ocean acidification conditions, S. variabilis shows minimal impact...
Aphid Foraging Behavior on Barley Reduced Under Elevated CO2 (20 March 2020)
Elevated CO2 not only reduced the effectiveness of the most attractive barely-emitted VOC for the corn aphid by reducing its concentration, it also increased the concentration of its most effective VOC for repelling aphids...

Plant Growth Database (19 March 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Oilseed Rape (Uddin et al., 2019). To access the entire database, click here.
Pan Evaporation Trends in Central Mexico (18 March 2020)
Global warming alarmists predict pan evaporation should be increasing in response to rising air temperatures. However, data from central Mexico tell a different story...

Plant Growth Database (17 March 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Red Maple (Li et al., 2019). To access the entire database, click here.

The Combined Effects of CO2, Temperature and Weeds on Wheat Grain Yield
(16 March 2020)
Elevated CO2 improved wheat yields from 8 to 18%. And, it fully ameliorated the two stresses of elevated temperature and weed presence, enabling grain yields that were similar to or greater than that observed in the ambient CO2, ambient temperature and no weeds present treatment...
The Interactive Effects of Elevated CO2 and Simulated Herbivory on a Leguminous Tree Species (13 March 2020)
Elevated CO2 "attenuated the adverse effects of leaf removal on H. stigonocarpa plants by inducing photosynthetic improvement and growth after the loss of leaf tissue"...

Plant Growth Database (12 March 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Wheat (Hazra et al., 2019). To access the entire database, click here.

Models Underestimate the Positive Impact of CO2 on Gross Primary Production
(11 March 2020)
Current CMIP5 models grossly underestimate the future land sink, in the case of RCP2.6 emission scenario by a whopping 129%! And they do so because these supposedly state-of-the-art models fail to correctly account for the positive impacts of CO2 fertilization...

Plant Growth Database (10 March 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Stilted Mangrove (Jacotot et al., 2019). To access the entire database, click here.

Petition of the Center for the Study of Carbon Dioxide and Global Change to the United States Environmental Protection Agency for Repeal of EPA's 2009 Endangerment Finding (9 March 2020)
Today, the Center for the Study of Carbon Dioxide and Global Change filed a petition with the United States Environmental Protection Agency, asking the agency to repeal its Endangerment Finding for Greenhouse Gases Under Section 202(a) of the Clean Air Act. Read a press release associated with this filing. A pdf version of the petition can be downloaded here for review.
Elevated CO2 and Elevated Temperature Improve Potato Growth (9 March 2020)
Both above and belowground biomass of this important global food crop are increased by these two parameters, either alone or in combination...

Plant Growth Database (6 March 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Native Texas Grassland (Polley et al., 2019). To access the entire database, click here.
No Evidence Ocean Acidification Impairs Coral Reef Fish Behavior (5 March 2020)
In the most comprehensive and scientifically-robust study of its kind to date, a mountain of data reveal there is absolutely no impact of pCO2 on fish behavior...

Plant Growth Database (4 March 2020)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Rice (Hasegawa et al., 2019; paddy (unhulled grain) yield, cv. Takanari). To access the entire database, click here.

Elevated CO2 Reduces the Negative Impact of a Heat Wave on Lentil N2 Fixation
(3 March 2020)
Elevated CO2 enhanced faster leaf nitrogen translocation into lentil grains when exposed to a heat wave stress, which helped improve grain N/protein concentration...