Daily Archives: June 8, 2017

Dilbert Wins Climate Debate!

“A communications group at Yale University has put out a video that seems to be a rebuttal to a Dilbert cartoon by Scott Adams poking fun at climate scientists and their misplaced confidence in models. The video is full of impressive-looking scientists talking about charts and data and whatnot. It probably cost a lot to make and certainly involved a lot of time and effort. The most amazing thing, however, is that it actually proves the points being made in the Dilbert cartoon. Rather than debunking the cartoon, the scientists acted it out in slow motion.” click here

Geonotoxicity of Drinking Water Treated with Disinfectants; China

Nie X, Liu W, Zhang L, Liu Q. Genotoxicity of drinking water treated with different disinfectants and effects of disinfection conditions detected by umu-test. Journal of environmental sciences (China). 2017 Jun;56:36-44. doi: 10.1016/j.jes.2016.07.016.

The genotoxicity of drinking water treated with 6 disinfection methods and the effects of disinfection conditions were investigated using the umu-test. The pretreatment procedure of samples for the umu-test was optimized for drinking water analysis. The results of the umu-test were in good correlation with those of the Ames-test. The genotoxicity and production of haloacetic acids (HAAs) were the highest for chlorinated samples. UV+chloramination is the safest disinfection method from the aspects of genotoxicity, HAA production and inactivation effects. For chloramination, the effects of the mass ratio of Cl2 to N of chloramine on genotoxicity were also studied. The changes of genotoxicity were different from those of HAA production, which implied that HAA production cannot represent the genotoxic potential of water. The genotoxicity per chlorine decay of chlorination and chloramination had similar trends, indicating that the reaction of organic matters and chlorine made a great contribution to the genotoxicity. The results of this study are of engineering significance for optimizing the operation of waterworks.

Top Polluters Contribute $0 to Global Green Climate Fund?

“The United States contributed $1 billion to the global Green Climate Fund, but the world’s top polluters contributed nothing, David Asman reported.” click here