Category Archives: Impacts Observed & Projected

PLEA Network

2 November 2017, The Conversation, Extreme weather leads to public health crises – so health and climate experts must work together. This year has seen a number of extreme weather events around the globe, from hurricanes in the Americas to devastating flooding in South Asia. The loss of lives, homes and livelihoods are made worse by subsequent disease outbreaks: after the South Asian floods, more than 12,000 cases of watery diarrhoea were reported in Bangladesh. Presumably, many more cases are unreported. As our climate changes, severe weather events (especially intense rainfall) will become the “new normal”. The connection between climate and disease is well established, even in less extreme situations.This makes it vital that our meteorologists, climate scientists and health systems work closely together. Particularly, health professionals should make better use of weather forecasts to proactively manage disease risk. Climate outlooks – with a longer-term perspective than weather forecasts – can also help with long-range tactical and strategic planning. The link between climate change and disease. Climate change projections consistently indicate increased climate variability. A more variable climate creates conditions for the spread and control of infectious disease. In particular, changes in the intensity and duration of rain can help spread pathogens through water. Both floods and droughts can increase waterborne infections, either when clean and dirty water mix during floods, or through inadequate storage and concentration of toxic organisms when water is scarce. Read More here

 

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14 October 2017, The Guardian, Geoengineering is not a quick fix for climate change, experts warn Trump. Leading climate scientists have warned that geoengineering research could be hijacked by climate change deniers as an excuse not to reduce CO2 emissions, citing the US administration under Donald Trump as a major threat to their work. David Keith, a solar geoengineering (GE) expert at Harvard University has said there is a real danger that his work could be exploited by those who oppose action on emissions, at the same time as he defended himself and colleagues from the claims GE strengthens the argument for abandoning the targets set by the Paris climate agreement. Leading climate scientists have warned that geoengineering research could be hijacked by climate change deniers as an excuse not to reduce CO2 emissions, citing the US administration under Donald Trump as a major threat to their work. David Keith, a solar geoengineering (GE) expert at Harvard University has said there is a real danger that his work could be exploited by those who oppose action on emissions, at the same time as he defended himself and colleagues from the claims GE strengthens the argument for abandoning the targets set by the Paris climate agreement. “One of the main concerns I and everyone involved in this have, is that Trump might tweet ‘geoengineering solves everything – we don’t have to bother about emissions.’  Read More here

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13 October 2017, UN, Climate change is a threat to rich and poor alike. From Miami and Puerto Rico to Barbuda and Havana, the devastation of this year’s hurricane season across Latin America and the Caribbean serves as a reminder that the impacts of climate change know no borders. In recent weeks, Category 5 hurricanes have brought normal life to a standstill for millions in the Caribbean and on the American mainland. Harvey, Irma and Maria have been particularly damaging. The 3.4 million inhabitants of Puerto Rico have been scrambling for basic necessities including food and water, the island of Barbuda has been rendered uninhabitable, and dozens of people are missing or dead on the UNESCO world heritage island of Dominica. The impact is not confined to this region. The record floods across Bangladesh, India and Nepal have made life miserable for some 40 million people.  More than 1,200 people have died and many people have lost their homes, crops have been destroyed, and many workplaces have been inundated. Meanwhile, in Africa, over the last 18 months 20 countries have declared drought emergencies, with major displacement taking place across the Horn region. For those countries that are least developed the impact of disasters can be severe, stripping away livelihoods and progress on health and education; for developed and middle-income countries the economic losses from infrastructure alone can be massive; for both, these events reiterate the need to act on a changing climate that threatens only more frequent and more severe disasters. Read More here

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12 October 2017, BBC News, Ozone layer recovery could be delayed by 30 years. Rising global emissions of some chlorine-containing chemicals could slow the progress made in healing the ozone layer.A study found the substances, widely used for paint stripping and in the manufacture of PVC, are increasing much faster than previously thought. Mainly produced in China, these compounds are not currently regulated. Experts say their continued use could set back the closing of the ozone hole by up to 30 years. Scientists reported last year that they had detected the first clear evidence that the thinning of the protective ozone layer was diminishing. The Montreal Protocol, which was signed 30 years ago, was the key to this progress. It has progressively helped governments phase out the chlorofluorocarbons and the hydrochlorofluorocarbons that were causing the problem. However, concern has been growing over the past few years about a number of chemicals, dubbed “very short-lived substances”. Antarctic ozone hole starts to ‘heal’ How Arctic ozone hole was avoided Weather ‘behind ozone hole changes’ Dichloromethane is one of these chemicals, and is used as an industrial solvent and a paint remover. Levels in the atmosphere have increased by 60% over the past decade. Read More here