WELCOMING A NEW PARTNER: CO2SCIENCE
We are big admirers of CO2Science.org, which for many years has been sifting through the scientific literature and posting summaries of important articles on a wide variety of climate-related topics, with a special focus on biological effects of CO2 levels on plants. With their kind permission we are going to begin sharing with CDN readers some of their work here in our Science Items section. This week we start with two of their recent postings.
Analysis of data from 15 major Chinese cities reveals the mortality attributable due to cold weather is nine times greater than that due to warm weather...
Paper Reviewed by CO2Science:
Zhang, Y., Wang, S., Zhang, X., Hu, Q. and Zheng, C. 2020. Association between moderately cold temperature and mortality in China. Environmental Science and Pollution Research doi.org/10.1007/s11356-020-08960-5.
Climate alarmists predict global warming will increase human death rates, and nary a heat wave occurs but what they are quick to blame any concurrent excess deaths on the high temperatures associated with it.
Much more deadly than hot weather, however, is cold weather; yet climate alarmists typically ignore the excess deaths that are caused by low temperatures, even though they are far more numerous than those caused by high temperatures. Indeed, numerous studies detailing this fact -- that extreme cold kills far more persons than extreme heat -- can be found by perusing the many reviews of the topic we [CO2Science] have posted in our Subject Index under the subheadings of Health Effects of Temperature: Hot vs Cold Weather. The present review details the latest work to confirm this fact, as reported by Zhang et al. (2020) for 15 Chinese cities using data from 2010-2016.
To conduct their analysis the five Chinese researchers utilized daily mortality and meteorological data from the capital cities of 12 provinces (Harbin, Changchun, Shenyang, Urumqi, Shijiazhuang, Xining, Lanzhou, Nanjing, Hefei, Chengdu, Kunming, and Guangzhou) and three municipalities (Beijing, Tianjin, and Shanghai).
[The] data suggest human adaptation and preference for temperatures on the warm side of the observed temperature spectrum. More importantly, however, are the calculations of attributable mortality fractions (AMF). Here, Zhang et al. report that “over all the cities, the total attributable fraction of mortality caused by non-optimum temperature, including both cold and heat, was 12.65%,” varying from 7.03% in Kunming to 21.07% in Xining. But, the vast majority of those deaths (approximately 90%) were attributed to cold weather (the mean AMF for all cities due to cold weather was 11.38%, whereas it was only 1.27% for hot weather).
Thus, given the above, it is clear that cold weather is far more deadly (AMF value is nine times greater in this study) and of much greater concern to human health than warm weather.