“The overwhelming conclusion from years of accumulated conversations with native populations about polar bears is that there is almost no connection between the long-term observations of polar bear ecology and the more recent claims that polar bears as a species are in grave danger due to climate change and thinning sea ice.
In fact, the long-term observations suggest that polar bear subpopulations are currently faring quite well, with 92% of the subpopulations studied either remaining stable or growing in recent years.” click here
“TransAlta Corp. said Tuesday the blades on 57 turbines at its Cowley Ridge facility near Pincher Creek have already been halted and the towers are to be toppled and recycled for scrap metal this spring. The company inherited the now-obsolete facility, built between 1993 and 1994, as part of its $1.6-billion hostile takeover of Calgary-based Canadian Hydro Developers Inc. in 2009.” click here
Does global warming increase or decrease Hudson Bay Sea ice? I’m just wondering….. click here
“Whether you look at greenhouse gas emissions or economic statistics, B.C. carbon tax has tanked.” click here
“Friends of Science Society says Canadians have been “Climate Hustled” into the official ratification of the Paris COP-21 climate change agreement, as reported by the National Observer, Oct. 5, 2016. Undeterred, Friends of Science have launched a new ClimateChange101.ca – a bilingual, plain language website and video billboard in downtown Montreal.” click here
Delatolla R, Seguin C, Springthorpe S, Gorman E, Campbell A, Douglas I. Disinfection byproduct formation during biofiltration cycle: Implications for drinking water production. Chemosphere 2015 Oct; Vol. 136, pp. 190-7.
The goal of this study was to investigate the potential of biofiltration to reduce the formation potential of disinfection byproducts (DBPs). Particularly, the work investigates the effect of the duration of the filter cycle on the formation potential of total trihalomethanes (TTHM) and five species of haloacetic acids (HAA5), dissolved oxygen (DO), organic carbon, nitrogen and total phosphorous concentrations along with biofilm coverage of the filter media and biomass viability of the attached cells. The study was conducted on a full-scale biologically active filter, with anthracite and sand media, at the Britannia water treatment plant (WTP), located in Ottawa, Ontario, Canada. The formation potential of both TTHMs and HAA5s decreased due to biofiltration. However the lowest formation potentials for both groups of DBPs and or their precursors were observed immediately following a backwash event. Hence, the highest percent removal of DBPs was observed during the early stages of the biofiltration cycle, which suggests that a higher frequency of backwashing will reduce the formation of DBPs. Variable pressure scanning electron microscopy (VPSEM) analysis shows that biofilm coverage of anthracite and sand media increases as the filtration cycle progressed, while biomass viability analysis demonstrates that the percentage of cells attached to the anthracite and sand media also increases as the filtration cycle progresses. These results suggest that the development and growth of biofilm on the filters increases the DPB formation potential.
“Now climate scientists at Environment and Climate Change Canada who have been studying the phenomenon to see whether something unusual was behind it have an answer: Such an extreme winter is within the range of normal for Canada.” click here