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Changing planet, changing health : how the climate crisis threatens our health and what we can do about it
\"Climate change is now doing far more harm than marooning polar bears on melting chunks of ice--it is damaging the health of people around the world. Brilliantly connecting stories of real people with cutting-edge scientific and medical information, Changing planet, changing health brings us to places like Mozambique, Honduras, and the United States for an eye-opening on-the-ground investigation of how climate change is altering patterns of disease. Written by a physician and world expert on climate and health and an award-winning science journalist, the book reveals the surprising links between global warming and cholera, malaria, lyme disease, asthma, and other health threats. In clear, accessible language, it also discusses topics including Climategate, cap-and-trade proposals, and the relationship between free markets and the climate crisis. Most importantly, Changing planet, changing health delivers a suite of innovative solutions for shaping a healthy global economic order in the twenty-first century\"-- Provided by publisher.
Book
Climate Change and Urban Health
This book describes a theoretical framework and related technical skills for investigating climate change and its public health consequences and responses with a focus on urban settings, and in particular Hong Kong, a subtropical metropolis in Asia.
Specifically, the book examines the impact of climate change on health in terms of mortality, hospital admissions and help-seeking, as well as key response strategies of adaptation and mitigation. Many existing books tend to consider the relationship of climate change and public health as two independent issues that are divided into various discrete topics. Conversely, this book explicitly applies public health concepts to study the human impact of climate change, for example, by conceptualising climate change impact and its alleviation, mitigation, and adaptation in a public health framework. Overall, this volume summarises what is known about climate change and health in Hong Kong and intends to ignite further debates in the area, especially for urban subtropical communities from a wider global perspective.
This book will be of great interest to students and scholars of environmental health, public health, climate change, urban studies, and Asian studies.
eBook
Changing planet, changing health
Climate change is now doing far more harm than marooning polar bears on melting chunks of ice—it is damaging the health of people around the world. Brilliantly connecting stories of real people with cutting-edge scientific and medical information, Changing Planet, Changing Health brings us to places like Mozambique, Honduras, and the United States for an eye-opening on-the-ground investigation of how climate change is altering patterns of disease. Written by a physician and world expert on climate and health and an award-winning science journalist, the book reveals the surprising links between global warming and cholera, malaria, lyme disease, asthma, and other health threats. In clear, accessible language, it also discusses topics including Climategate, cap-and-trade proposals, and the relationship between free markets and the climate crisis. Most importantly, Changing Planet, Changing Health delivers a suite of innovative solutions for shaping a healthy global economic order in the twenty-first century.
eBook
Species Diversity and Seasonal Distribution of Hard Ticks
Hard ticks are among the most important blood sucking arthropods that transmit pathogens to humans and animals. This study was designed to determine prevalence, mapping, geographical distribution, and seasonal activity of hard tick species infesting the most common domestic and wild mammals in various districts of Riyadh Province, Saudi Arabia, during the period January to December 2017. In total, 10,832 adult hard ticks were collected from the bodies of 8,435 animals belonging to 18 different mammalian species. The ticks were preserved in 70% alcohol and microscopy was used to identify species. Two genera, Hyalomma and Rhipicephalus, were identified, comprising 10 species of hard ticks, with Hyalomma comprising 68.3% and Rhipicephalus comprising 31.7% of species. The most common species on domestic mammalian hosts was Hyalomma dromedarii (Koch 1844) (39.9%) followed by Rhipicephalus turanicus (Pomerantsev, Matikashvili & Lotosky 1936) (34.9%), whereas on wild mammalian hosts Rhipicephalus sanguineus (Latreille 1806) was by far the most prevalent species (83.0%). However, ticks were most abundant during May through July (36.0%) in the studied areas, and tick intensity and abundance differed among seasons. Our results provide information for human and animal health service managers, as well as governmental authorities, to gain a better understanding of hard ticks infesting mammalian hosts in Riyadh Province, Saudi Arabia, which can help improve prevention and control of tick-borne diseases, especially during outbreaks.
Journal Article
Effects of temperature and humidity on the spread of COVID-19: A systematic review
Faced with the global pandemic of COVID-19, declared by World Health Organization (WHO) on March 11th 2020, and the need to better understand the seasonal behavior of the virus, our team conducted this systematic review to describe current knowledge about the emergence and replicability of the virus and its connection with different weather factors such as temperature and relative humidity.
The review was registered with the PROSPERO database. The electronic databases PubMed, Scopus, Web of Science, Cochrane Library, LILACS, OpenGrey and Google Scholar were examined with the searches restricted to the years 2019 and 2020. Risk of bias assessment was performed using the Joanna Briggs Institute (JBI) Critical Appraisal Checklist tool. The GRADE tool was used to assess the certainty of the evidence.
The initial screening identified 517 articles. After examination of the full texts, seventeen studies met the review's eligibility criteria. Great homogeneity was observed in the findings regarding the effect of temperature and humidity on the seasonal viability and transmissibility of COVID-19. Cold and dry conditions were potentiating factors on the spread of the virus. After quality assessment, two studies had a high risk of bias, eleven studies were scored as moderate risk of bias, and four studies were classified as low risk of bias. The certainty of evidence was graded as low for both outcomes evaluated.
Considering the existing scientific evidence, warm and wet climates seem to reduce the spread of COVID-19. However, these variables alone could not explain most of the variability in disease transmission. Therefore, the countries most affected by the disease should focus on health policies, even with climates less favorable to the virus. Although the certainty of the evidence generated was classified as low, there was homogeneity between the results reported by the included studies.
Journal Article
Global expansion and redistribution of Aedes-borne virus transmission risk with climate change
Forecasting the impacts of climate change on Aedes-borne viruses-especially dengue, chikungunya, and Zika-is a key component of public health preparedness. We apply an empirically parameterized model of viral transmission by the vectors Aedes aegypti and Ae. albopictus, as a function of temperature, to predict cumulative monthly global transmission risk in current climates, and compare them with projected risk in 2050 and 2080 based on general circulation models (GCMs). Our results show that if mosquito range shifts track optimal temperature ranges for transmission (21.3-34.0°C for Ae. aegypti; 19.9-29.4°C for Ae. albopictus), we can expect poleward shifts in Aedes-borne virus distributions. However, the differing thermal niches of the two vectors produce different patterns of shifts under climate change. More severe climate change scenarios produce larger population exposures to transmission by Ae. aegypti, but not by Ae. albopictus in the most extreme cases. Climate-driven risk of transmission from both mosquitoes will increase substantially, even in the short term, for most of Europe. In contrast, significant reductions in climate suitability are expected for Ae. albopictus, most noticeably in southeast Asia and west Africa. Within the next century, nearly a billion people are threatened with new exposure to virus transmission by both Aedes spp. in the worst-case scenario. As major net losses in year-round transmission risk are predicted for Ae. albopictus, we project a global shift towards more seasonal risk across regions. Many other complicating factors (like mosquito range limits and viral evolution) exist, but overall our results indicate that while climate change will lead to increased net and new exposures to Aedes-borne viruses, the most extreme increases in Ae. albopictus transmission are predicted to occur at intermediate climate change scenarios.
Journal Article
Impact of Recent Climate Extremes on Mosquito-borne Disease Transmission in Kenya
Climate change and variability influence temperature and rainfall, which impact vector abundance and the dynamics of vector-borne disease transmission. Climate change is projected to increase the frequency and intensity of extreme climate events. Mosquito-borne diseases, such as dengue fever, are primarily transmitted by Aedes aegypti mosquitoes. Freshwater availability and temperature affect dengue vector populations via a variety of biological processes and thus influence the ability of mosquitoes to effectively transmit disease. However, the effect of droughts, floods, heat waves, and cold waves is not well understood. Using vector, climate, and dengue disease data collected between 2013 and 2019 in Kenya, this retrospective cohort study aims to elucidate the impact of extreme rainfall and temperature on mosquito abundance and the risk of arboviral infections. To define extreme periods of rainfall and land surface temperature (LST), we calculated monthly anomalies as deviations from long-term means (1983–2019 for rainfall, 2000–2019 for LST) across four study locations in Kenya. We classified extreme climate events as the upper and lower 10% of these calculated LST or rainfall deviations. Monthly Ae. aegypti abundance was recorded in Kenya using four trapping methods. Blood samples were also collected from children with febrile illness presenting to four field sites and tested for dengue virus using an IgG enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR). We found that mosquito eggs and adults were significantly more abundant one month following an abnormally wet month. The relationship between mosquito abundance and dengue risk follows a non-linear association. Our findings suggest that early warnings and targeted interventions during periods of abnormal rainfall and temperature, especially flooding, can potentially contribute to reductions in risk of viral transmission
Journal Article
Climate Change Adaptation for Health and Social Services
Climate Change Adaptation for Health and Social Services addresses concerns from the health and community services sector, including local government, about how to respond to climate change and its impacts on communities. What should an intervention framework for the community-based health and social services sector contain and how can it complement an organisation's core values, role and work programs? What current direct and indirect impacts of climate change are most relevant to organisations and the communities they serve? Which population groups are most vulnerable to climate change and what are the impacts on them? Above all, what can be done to reduce the current risks from climate change to clients, communities and organisations?Written by expert researchers and practitioners, this book presents existing research, innovative practice and useful tools to support organisations taking practical steps towards adaptation to the impacts of climate change on people. It examines the evidence of climate change impacts on six of the most vulnerable population groups – people with disability; older people; women and children; Aboriginal people; rural people; and people from culturally and linguistically diverse backgrounds – as well as discussing effective interventions. Other key issues covered include health and social impacts of climate change, adaptation, mitigation, climate change communication, organisational adaptation and a case study of innovation illustrating some of the book's themes.Accessible, informative and incorporating extensive evidence and experience, Climate Change Adaptation for Health and Social Services is relevant for anyone within the health and community services sector concerned about climate change and its impacts on their community.
eBook
Temporal Variation in Species Abundance and Richness of Culicoides
The aim of this study was to investigate whether temperature, rainfall, and humidity influence the annual distribution of Culicoides Latreille 1809, species abundance and richness in rural areas on Sao Luis Island in the state of Maranhao, Brazil. Biting midges were collected in housing for domestic animals in the peridomestic areas of 10 homes. A CDC light trap was installed in each peridomestic area from 6:00 p.m. to 6:00 a.m. once a month for 12 mo. In total, 23,633 individuals belonging to 26 Culicoides species were captured. The most abundant species were Culicoides diabolicus Hoffman, 1925 (27.43%), C. ignacioi Forattini, 1957 (25.9%), C. flavivenulus Costa Lima, 1937 (15.53%), C. insignis Lutz, 1913 (10.66%), C. filariferus Hoffman, 1939 (6.21%), C. boliviensis Spinelli & Wirth, 1984 (6.07%), C. foxi Ortiz, 1950 (2.83%), and C. leopoldoi Ortiz, 1951 (2.54%). Species richness and abundance were greater during the rainy season (24 species; 88% of the individuals) than during the dry season (18 species; 12% of individuals). However, persistent rain on the days the midges were collected or in the preceding 24 h adversely affected abundance. Mean monthly maximum temperature and rainfall on the day of the collection adversely affected Culicoides abundance and richness.
Journal Article