A staggering number of internally displaced people have little defense against the coronavirus (IDMC – Internal Displacement Monitoring Centre). Globally, there are 40+ million persons who have been forced to leave their homes because of violence or natural disaster, and who are still remaining in their own country but with precarious living conditions. Many are especially vulnerable because they live “in crowded conditions and without access to water and sanitation, healthcare and government support…..simply cannot ‘self-isolate’, enjoy the levels of water and sanitation, and respond to illness in the way that billions in their own homes can.” (This organization is one of the few that seeks to offer help to such almost-forgotten persons.)
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Overly ambitious human demands for natural resources are linked to the growth in numbers of infectious diseases (The Guardian). The author of this extensive review has interviewed many of the scientists who pay attention to these phenomena. A common theme: “Humans…are creating the conditions for the spread of diseases by reducing the natural barriers between host animals – in which the virus is naturally circulating – and themselves…..I am not at all surprised about the coronavirus outbreak—The majority of pathogens are still to be discovered. We are at the very tip of the iceberg.” They also prescribe recommendations for remediation.
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Scientists believe the circumstances leading up to the American Dust Bowl of the 1930s could be replicated because of climate change (Frontiers in Sustainable Food Systems). “The Dust Bowl was centered on the Great Plains of the USA, where decades of unsustainable deep plowing had displaced native, moisture-retaining grasses. An atypical La Niña then brought intense droughts, high temperatures, and strong winds which blew away the topsoil in the form of large-scale dust storms…..a catastrophic effect on crops where wheat and maize production in the USA plummeted by 36% and 48% during the 1930s…..But due to climate change, massive crop failures are more likely to happen again in the future…..in another three to four decades that most of the USA will have further warmed by 1.5-2 °C.” This IPCC prediction gave rise to a new study about how global food supplies would be harmfully amplified by an event of similar magnitude:
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One kind of geoengineering, done properly, is probably safe enough to try (University College London). “Stratospheric aerosol geoengineering is the idea that adding a layer of aerosol particles to the upper atmosphere can reduce climate changes caused by greenhouse gases such as carbon dioxide. Previous research shows that solar geoengineering could be achieved using commercially available aircraft technologies to deliver the particles at a cost of a few billion dollars per year and would reduce global average temperatures.” Questions have been raised about the possibility of unsafe side effects, which have now apparently been given a satisfactory answer. It all depends on the dosage, which must be kept low enough. (I think we’ll see it happen, in just a very few years.)
Carl