Mosquito-borne diseases could reach extra ‘one billion people’ as climate warms

Mosquito-borne diseases could reach extra ‘one billion people’ as climate warms

SOURCE: CarbonBrief DATE: March 28, 2019 SNIP: Nearly one billion people could face “their first exposure” to a host of mosquito-borne diseases by 2080 under extreme global warming, a study finds. Countries in Europe, including the UK, would be the most affected by the influence of extreme warming on diseases such as dengue fever, Zika and chikungunya, the research says. Meeting the Paris Agreement’s target of limiting warming to below 2C could greatly stem the increase, the authors say. However, this would also shift the burden of disease from wealthy mid-latitude countries to the developing tropics. The findings “point to a future world where a much larger proportion of the human population will be at risk of viruses borne by mosquitoes,” a scientist tells Carbon...
Climate Change Is Having a Major Impact on Global Health

Climate Change Is Having a Major Impact on Global Health

SOURCE: Scientific American DATE: March 1, 2019 SNIP: Warming temperatures do not only threaten lives directly. They also cause billions of hours of lost labor, enhance conditions for the spread of infectious diseases and reduce crop yields, according to a recent report. The report, published last December in the Lancet, represents the latest findings of the Lancet Countdown—a coalition of international research organizations collaborating with the World Health Organization and the World Meteorological Organization. The group tracks the health impacts of—and government responses to—climate change. “It affects everyone around the world—every single person, every single population. No country is immune,” says Nick Watts, executive director of the Lancet Countdown and one of many co-authors of the report. “We’ve been seeing these impacts for some time now.” The report found that millions of people worldwide are vulnerable to heat-related disease and death and that populations in Europe and the eastern Mediterranean are especially susceptible—most likely because they have more elderly people living in urban areas. Adults older than 65 are particularly at risk, as are those with chronic illnesses such as heart disease or diabetes. Places where humans tend to live are exposed to an average temperature change that is more than twice the global average—0.8 versus 0.3 degree Celsius (graphic). There were 157 million more “heat wave exposure events” (one heat wave experienced by one person) in 2017 than in 2000. Compared with 1986 to 2005, each person was exposed to, on average, 1.4 more days of heat wave per year from 2000 to 2017. That may not seem like a lot, but as Watts notes, “someone who is...
Climate change risk to Europe’s most dangerous pathogens revealed

Climate change risk to Europe’s most dangerous pathogens revealed

SOURCE: University of Liverpool DATE: Aug 2, 2017 SNIP: The impact of climate change on the emergence and spread of infectious diseases could be greater than previously thought, according to new research by the University’s Institute of Infection and Global Health. The study, published in Scientific Reports, is the first large-scale assessment of how climate affects bacterium, viruses or other microorganisms and parasites (pathogens) that can cause disease in humans or animals in Europe. Diseases spread by insects and ticks (vector-borne diseases) were found to be the most climate sensitive, followed by those transmitted in soil, water and food. The diseases with the largest number of different climate drivers were Vibrio cholerae (cause of cholera), Fasciola hepatica (cause of liver fluke), Bacillus anthracis (cause of anthrax) and Borrelia burgdorferi (cause of tickborne Lyme...