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Volume 18:  April 2015 Archive of CO2 Science Postings

Antarctic Brachiopod Shell Growth and Repair in OA Conditions (30 April 2015)
A new study of the potential impacts of forecasted temperature and ocean acidification conditions near the end of the 21st century on a hard-shelled inhabitant of the Southern Ocean reveals a good example of the old adage that "when the going gets tough, the tough get going"...

Plant Growth Database (30 April 2015)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Indian Mustard (Seth and Misra, 2014)...

Half a Century of Diurnal Temperature Range Changes in China (29 April 2015)
What do they reveal? ... and why is the result important?...

Evaluating AGCM Simulations of Tropical Temperature Trends (29 April 2015)
When sea surface temperature measurements are used to assess the validity -- or not -- of climate model predictions of concomitant upper tropospheric temperature trends, it is essential that the SST data are correct...

An 8000-Year Environmental History of Eastern North Greenland (28 April 2015)
At a time, today, when the air's CO2 concentration is approximately 400 ppm, it is still much cooler in Greenland than when the Holocene thermal maximum held sway and the air's CO2 concentration was a mere 250 ppm. And, despite that extended period of warmer temperatures during the HTM, the Greenland ice sheet did not disappear. Yet some people are concerned that 21st century CO2 concentrations and temperatures are somehow going to melt the ice sheet and wreck havoc on sea levels??...

Assessments of CMIP5-Derived Aerosol Distributions over India (28 April 2015)
The authors of this enlightening paper demonstrate a number of significant deficiencies in the representation of aerosols and their climatic impacts over the Indian subcontinent in current state-of-the-art climate models...

Mammals in a CO2-Enriched and Warmer World -- Summary (27 April 2015)
Under such environmental circumstances (the latter of which is highly speculative) would Earth's mammals have a difficult time surviving? ... with some of them actually being driven to extinction??...

Modelling the Recent History of Changes in the Walker Circulation (27 April 2015)
What CMIP5 models predict should have happened and what real-world data reveal about the matter are shown to be two very different things...

Is Global Sea Level Responding as Predicted by Climate Models? (24 April 2015)
Has there been any recent real-world thermal expansion of Earth's ocean water and/or a melting of polar ice sheets due to global warming that may have led to enhanced rates of global sea level rise?...

Heat Resistance in Reef-Building Corals (23 April 2015)
The capabilities of these corals to withstand the future heat that is predicted to occur by current climate models appear to be much greater than what most researchers have ever thought...

Plant Growth Database (23 April 2015)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for the Common Reed (Eller et al., 2014)...

A 4000-Year History of Climate Change in North Xinjiang, China (22 April 2015)
A new paleoclimate record demonstrates that there is nothing unusual, unnatural or unprecedented about Earth's current level of warmth...

Risks of Dying from Unusually Hot or Cold Weather in Australia (21 April 2015)
As is the case for pretty much all of the world, cold spells kill many more people than do warmer weather extremes...

Climate Model Inadequacies (Radiation) -- Summary (20 April 2015)
Try as they might, the world's climate modelers still fall short of the mark when it comes to correctly modeling earth's surface radiative energy balance and how it may be altered by anthropogenic CO2 emissions...

Ozone-Circulation Feedback: Its Effects on Climate Model Output (20 April 2015)
As the stratospheric ozone layer gradually rebuilds itself -- after society's inadvertent assault upon it -- we may expect it to equally gradually counteract the global warming potential of anthropogenic greenhouse gas emissions...

In Defense of Fossil Fuels, CO2, Prosperity, and Skeptical Scientists (16 April 2015)
From Breitbart.com: The witch-hunting obsessions of the climate cult took them into the realm of total absurdity with March’s “Open Letter to Museums From Members of the Scientific Community,” which called upon museum administrators to begin refusing donations from the evil fossil-fuel industry...

"TO THE MUSEUMS OF SCIENCE AND NATURAL HISTORY" -- AN OPEN RESPONSE (16 April 2015)
CO2 Science is proud to host this open letter response to McCarthy-style demands that museums in the United States accept no charitable donations from companies involved with fossil fuels. Read the response and add your name to the letter...

Biases in Climate Model-Derived Surface Air Temperature Trends (16 April 2015)
We note yet another way in which the most advanced state-of-the-art climate models still fall short of where we all hope they would have been by now, in light of the vast amount of money and the large number of entire scientific careers that have been expended in developing climate models that are still plagued by numerous short-comings...

Plant Growth Database (16 April 2015)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Rice (Zhu et al., 2014)...

The Impact of Stratospheric Ozone Recovery on Global Warming (15 April 2015)
A recent review of numerous studies suggests that the ongoing recovery of Earth's ozone layer could play a major role in putting the brakes on any future propensity of the planet to warm any more than it has already done...

Highlights of a Review of the Many Ways Corals Can Beat the Heat (15 April 2015)
Just as there is "more than one way to skin a cat," there are a number of ways by which Earth's corals may maintain their vitality in a potentially warming world...

Southern California Lizards Could Cope with Predicted Warming (14 April 2015)
They've done it before ... and they can likely do it again. A pair of California scientists show us how...

The Capabilities of an Intertidal Crab Along a Latitudinal Gradient (14 April 2015)
"Under a future scenario of warming oceans, the thermal safety margins of P. violaceus indicate that lower latitude populations can physiologically tolerate the ocean-warming scenarios projected by the IPCC for the end of the twenty-first century," which is truly good news for nature...

The Thermal Buffering Effect of Australia's Alpine Boulder Fields (13 April 2015)
Sometimes it's actually good to be stuck between a rock and a hard place...

Two Millennia of Climate Change & the Fiscal Well-Being of China (13 April 2015)
During relatively warm periods, the fiscal climate in China has generally been good, while in relatively cold periods it has generally been, well, not-so-good...

Interactive Effects of CO2 and Ozone on Birch Trees -- Summary (10 April 2015)
Trees grown in CO2-enriched air nearly always exhibit increased rates of photosynthesis and biomass production, while trees grown in ozone (O3)-enriched air tend to experience the opposite effects. So what happens when both of these trace constituents of the atmosphere increase together? This question is explored below with respect to birch trees...

A Recent Search for an OA Tipping Point of Coral Reef Calcifiers (9 April 2015)
When it comes to coral reef responses to dreaded ocean acidification, climate alarmist projections of their demise a few short decades (or even centuries) from now are unsupported by the findings of this paper. And scare stories of tipping points in which reefs reach a point of no return beyond which calcification declines accelerate are equally unsupported...

Plant Growth Database (9 April 2015)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Indian Mustard (Seth and Misra, 2014)...

Strong Storms of the Little Ice Age on the Southern Coast of Brazil (8 April 2015)
A new paper provides more evidence for the reality of the Little Ice Age in the Southern Hemisphere, as well as its increased storminess compared to that of the Medieval and Current Warm Periods...

A Recipe for the Survival of a Species of Frogs in a Warming World (8 April 2015)
Their legs are good for a whole lot more than merely providing the raw materials for a delicious dish at a ritzy restaurant...

The Growth & Water Use Efficiency of Two Tree Species Since 1850 (7 April 2015)
Have the two phenomena been helped or hurt by the impacts of what climate alarmists consider to be the "twin evils" of atmospheric CO2 "pollution" and CO2-induced global warming?...

The Beijing Normal University Earth System Model (BNU-ESM) (7 April 2015)
How well is the new model performing? Let us count the many ways in which a new study suggests it sure could use some help...

Chitons Facing Ocean Acidification Grit Their Teeth and Prosper (6 April 2015)
Even at the low experimental pH of 7.5 (corresponding to 2,000 ppm atmospheric CO2) chitons suffer no ill. Having been around for over 300 million years they obviously have learned how to cope with fluctuating changes in their environment...

Century-Long Trends in Water Use Efficiency of European Forests (6 April 2015)
Over the period 1901 to 2000, forest intrinsic water-use efficiency increased by 28%. The largest increases were observed in the temperate forests of Central Europe, in a region that experienced a decrease in summer soil-water availability. Thank goodness for rising CO2, which is the major driver of this trend!!!...

CMIP5 Models Fail to Reproduce Post-1950 Indian Monsoon Trend (6 April 2015)
Reliable projections of the Indian monsoon would help India better prepare for, and address concerns of, water and food security. Yet because of the failure of general circulation models, "using CMIP5 multi-model projections of Indian summer monsoon rainfall for adaptation planning may lead to incorrect policies"...

Plant Growth Database (6 April 2015)
Our latest result of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature is for Red Raspberry (Hentley et al., 2014)...

On the Impact of 'Blue Carbon' Disturbance Within Seagrass Beds (1 April 2015)
Is the disturbance-induced release of carbon to the atmosphere relatively large, small or next to nothing? A new study makes a good case for the latter of the three possibilities...