Download The Findit App

Share Your Posts On These Major Social Networks

Instatag Your Posts to Instagram Facebook + Twitter

News

RESPONSE OF CORALS TO OCEAN ACIDIFICATION

What Can Be Learned from Field Studies?

Salt Lake City 4/15/2014 8:10:00 PM

It has been predicted that rates of coral calcification, as well as the photosynthetic rates of their symbiotic algae, will dramatically decline in response to what is typically referred to as an acidification of the world's oceans, as the atmosphere's CO2 concentration continues to rise in the years, decades, and centuries to come. As ever more pertinent evidence accumulates, however, the true story appears to be just the opposite. This summary examines such evidence obtained from field-based studies conducted in the natural ocean. 
Field studies hold an advantage over laboratory-based studies in that they more aptly represent conditions in the real world, many of which conditions are impossible or impractical to incorporate into a laboratory setting. Because of this, the findings produced in field studies  tend to hold more weight and help to establish greater clarity on a scientific topic or question under investigation than findings produced in a laboratory setting. Such is the case with ocean acidification. Whereas positive, negative and neutral effects from this phenomenon have been observed on corals in the laboratory setting, field-based studies in the ocean reveal the situation is much less dire than the IPCC predicts, with many studies suggesting a modest decline in oceanic pH may even favor coral calcification and growth. 
Pelejero et al. (2005), for example, developed a reconstruction of seawater pH spanning the period 1708-1988, based on the boron isotopic composition (ð11B) of a long-lived massive coral (Porites) from Flinders Reef in the western Coral Sea of the southwestern Pacific. Results indicated that "there [was] no notable trend toward lower ð11B values" over the 300-year period investigated. Instead, they say that "the dominant feature of the coral ð11B record is a clear interdecadal oscillation of pH, with ð11B values ranging between 23 and 25 per mil (7.9 and 8.2 pH units)," which "is synchronous with the Interdecadal Pacific Oscillation." Furthermore, they calculated changes in aragonite saturation state from the Flinders pH record that varied between ~3 and 4.5, which values encompass "the lower and upper limits of aragonite saturation state within which corals can survive." Despite this fact, they report that "skeletal extension and calcification rates for the Flinders Reef coral fall within the normal range for Porites and are not correlated with aragonite saturation state or pH." Thus, contrary to claims of the sensitivity of coral calcification rate to changes in pH and aragonite saturation state, they found that huge cyclical changes in these parameters had essentially no detectable effect on either coral calcification or skeletal extension rates. 

More News

https://s3.amazonaws.com/findit-pictures/19221/1779165_19221_160115073943

The Influence of CO2 on Plant Antioxidants

Center for the Study of Carbon Dioxide and Global Change. "The Influence of CO2 on Plant Antioxidants.” Last modified January 8, 2015. http://www.co2science.org/subject/a/summaries/antioxidants.php.

Released On: 1/16/2015
Views: 6396

View
https://s3.amazonaws.com/findit-pictures/19221/1771807_19221_050115011904

Health Effects of Hot Vs Cold Temperatures in Asia

Health Effects of Hot Vs Cold Temperatures in Asia.

Released On: 1/5/2015
Views: 6633

View
https://s3.amazonaws.com/findit-pictures/19221/1767800_19221_291214123540

Coral Reef Responses to Temperature Stress: Thermal Adaptation

Coral Reef Responses to Temperature Stress: Thermal Adaptation. As living entities, corals are not only acted upon by the various elements of their environment,they also react or respond to them.

Released On: 12/29/2014
Views: 6277

View
https://s3.amazonaws.com/findit-pictures/19221/1767752_19221_291214111658.jpg

Forest Growth Response to CO2

Forest Growth Response to CO2. By examining various properties of tree rings, researchers can deduce how historical increases in the air's CO2 concentration have already affected tree productivity and water use efficiency.

Released On: 12/29/2014
Views: 4879

View
https://s3.amazonaws.com/findit-pictures/19221/1767751_19221_291214110504.jpg

Onward Marches the Great Pause

Onward Marches the Great Pause. Since October 1996 there has been no global warming at all (Fig. 1).

Released On: 12/29/2014
Views: 3931

View
https://s3.amazonaws.com/findit-pictures/19221/1752698_19221_081214123011.jpg

RESPONSE OF VARIOUS MARINE ANIMALS TO OCEAN ACIDIFICATION AND WARMING

RESPONSE OF VARIOUS MARINE ANIMALS TO OCEAN ACIDIFICATION AND WARMING.

Released On: 12/8/2014
Views: 3585

View
https://s3.amazonaws.com/findit-pictures/19221/1752697_19221_081214121522.jpg

FACE EXPERIMENTS AND GRASSLAND SPECIES

FACE EXPERIMENTS AND GRASSLAND SPECIES.

Released On: 12/8/2014
Views: 4164

View
https://s3.amazonaws.com/findit-pictures/19221/1752696_19221_081214114115.jpg

EFFECTS OF OCEAN ACIDIFICATION ON FISH

EFFECTS OF OCEAN ACIDIFICATION ON FISH.

Released On: 12/8/2014
Views: 4179

View
https://s3.amazonaws.com/findit-pictures/19221/1741944_19221_211114021804.jpg

Response of Fish to Ocean Warming

Response of Fish to Ocean Warming. According to the IPCC, CO2-induced global warming will be net harmful to the world's marine species.

Released On: 11/21/2014
Views: 4092

View
https://s3.amazonaws.com/findit-pictures/19221/1741943_19221_211114021100.jpg

Long-Term Open-Top-Chamber Study of Sour Orange Trees

Long-Term Open-Top-Chamber Study of Sour Orange Trees. Eight 30-cm-tall sour orange tree (Citrus aurantium L.) seedlings were planted directly into the ground at the Agricultural Research Service's U.S. Water Conservation Laboratory in Phoenix, A ...

Released On: 11/21/2014
Views: 4127

View
https://s3.amazonaws.com/findit-pictures/19221/1741902_19221_211114020343

The Global Medieval Warm Period

The Global Medieval Warm Period. Between the 10th and 14th centuries AD, earth's average global temperature may have been warmer than it is today.

Released On: 11/21/2014
Views: 3926

View
https://s3.amazonaws.com/findit-pictures/19221/1701566_19221_300914015604

Growth Rates of Old versus Young Forest Trees

Growth Rates of Old versus Young Forest Trees. The planting and preservation of forests has long been acknowledged to be an effective and environmentally-friendly means for slowing climate-model-predicted CO2-induced global warming.

Released On: 9/30/2014
Views: 4176

View
https://s3.amazonaws.com/findit-pictures/19221/1701354_19221_300914102740

Tropical Trees

Citation: Center for the Study of Carbon Dioxide and Global Change. "Tropical Trees.”

Released On: 9/30/2014
Views: 4249

View
https://s3.amazonaws.com/findit-pictures/19221/1701356_19221_300914105354

Water Use Efficiency of Agricultural Species

Water Use Efficiency of Agricultural Species.

Released On: 9/30/2014
Views: 4147

View
https://s3.amazonaws.com/findit-pictures/19221/1689629_19221_120914021236

GLOBAL TEMPERATURES AND BIOSPHERIC PRODUCTIVITY

Global temperatures and biospheric productivity. Among the many climate-alarmist fears of CO2-induced global warming is the concern that the productivity of the biosphere will decline if global temperatures rise to the extent predicted by compute ...

Released On: 9/13/2014
Views: 4121

View
https://s3.amazonaws.com/findit-pictures/19221/1689623_19221_120914020343

REWRITING SUNSPOT HISTORY

Rewriting sunspot history. In 2006, when I first made the mistake of writing publicly of my doubts about the Party Line on manmade global warming.

Released On: 9/13/2014
Views: 4182

View
https://s3.amazonaws.com/findit-pictures/19221/1689620_19221_120914015840

ANALYSIS OF THE SECOND ORDER DRAFT OF THE WORKING GROUP I CONTRIBUTION TO IPCC 5AR

ANALYSIS OF THE SECOND ORDER DRAFT OF THE WORKING GROUP I CONTRIBUTION TO IPCC 5AR. The preparation of IPCC Assessment Reports involves several stages.

Released On: 9/13/2014
Views: 4019

View
https://s3.amazonaws.com/findit-pictures/19221/1689615_19221_120914015244

THE ECONOMICS OF BIOFUELS

The economics of biofuels. Aside from rejecting biofuel expansion and use for environmental reasons.

Released On: 9/13/2014
Views: 3859

View
Load More wait