Daily Archives: August 18, 2015

A Strong and Direct Rebuttal to CNN Claims Regarding Oklahoma

This particular article by CNN (here) has generated a strong rebuttal (here).

Why do so many ‘news’ writers deny that actual scientific measurements exist and data can be analyzed? 

Bacteria Found to Absorb Methane from the Atmosphere

M C Y Lau, B T Stackhouse, A C Layton, A Chauhan, T A Vishnivetskaya, K Chourey, J Ronholm, N C S Mykytczuk, P C Bennett, G Lamarche-Gagnon, N Burton, W H Pollard, C R Omelon, D M Medvigy, R L Hettich, S M Pfiffner, L G Whyte and T C Onstott. An active atmospheric methane sink in high Arctic mineral cryosolsThe ISME Journal (2015) 9, 1880–1891; doi:10.1038/ismej.2015.13;

Methane (CH4) emission by carbon-rich cryosols at the high latitudes in Northern Hemisphere has been studied extensively. In contrast, data on the CH4 emission potential of carbon-poor cryosols is limited, despite their spatial predominance. This work employs CH4 flux measurements in the field and under laboratory conditions to show that the mineral cryosols at Axel Heiberg Island in the Canadian high Arctic consistently consume atmospheric CH4. Omics analyses present the first molecular evidence of active atmospheric CH4-oxidizing bacteria (atmMOB) in permafrost-affected cryosols, with the prevalent atmMOB genotype in our acidic mineral cryosols being closely related to Upland Soil Cluster α. The atmospheric (atm) CH4 uptake at the study site increases with ground temperature between 0°C and 18°C. Consequently, the atm CH4 sink strength is predicted to increase by a factor of 5–30 as the Arctic warms by 5–15°C over a century. We demonstrate that acidic mineral cryosols are a previously unrecognized potential of CH4 sink that requires further investigation to determine its potential impact on larger scales. This study also calls attention to the poleward distribution of atmMOB, as well as to the potential influence of microbial atm CH4 oxidation, in the context of regional CH4 flux models and global warming.

Illegal Immigrants Usurp Rights from Black Americans

“Yes I am black, but I’m an American. They are getting away with murder. I was in Sacramento recently, and I protested about Kate Steinle. Then they get a get-out-of-jail-free card, and my nephew is in jail. They release them–30,000, if not more–every year. They put them right back on the street and it’s not right.”

“The black community–we’re tired of them citing civil rights because of people like Al Sharpton. They are being treated better than American citizens with our tax money.” click here for full article

Photoelectrooxidation Effective for Cyanotoxin Degradation

Garcia A, Rodrigues M, Xavier J, Gazulla V, Meneguzzi A, Bernardes AM. Degradation of cyanotoxins (microcystin) in drinking water using photoelectrooxidation. Brazilian Journal of Biology 2015 May;75(2 Suppl):45-9. doi: 10.1590/1519-6984.1413.

The discharge of sewage and industrial effluents containing high concentrations of pollutants in water bodies increases eutrophication. Cyanobacteria, some of the organisms whose growth is promoted by high nutrient concentrations, are resistant and produce several types of toxins, known as cyanotoxins, highly harmful to human beings. Current water treatment systems for the public water supply are not efficient in degradation of toxins. Advanced oxidation processes (AOP) have been tested for the removal of cyanotoxins, and the results have been positive. This study examines the application of photoelectrooxidation in the degradation of cyanotoxins (microcystins). The performance of the oxidative processes involved was evaluated separately: Photocatalysis, Electrolysis and Photoelectrooxidation. Results showed that the electrical current and UV radiation were directly associated with toxin degradation. The PEO system is efficient in removing cyanotoxins, and the reduction rate reached 99%. The final concentration of toxin was less than 1 µg/L of microcystin in the treated solution.