The WHO Global research agenda on health, migration and displacement identified the health of displaced and migrant populations in the context of climate change as one of the most pressing, yet unde
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r-researched, topics.
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Climate change is the single biggest health threat facing humanity, and health professionals worldwide are already responding to the health harms caused by this unfolding crisis.
The Intergovernmen
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tal Panel on Climate Change (IPCC) has concluded that to avert catastrophic health impacts and prevent millions of climate change-related deaths, the world must limit temperature rise to 1.5°C. Past emissions have already made a certain level of global temperature rise and other changes to the climate inevitable. Global heating of even 1.5°C is not considered safe, however; every additional tenth of a degree of warming will take a serious toll on people’s lives and health.
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The new review paper, The Impacts of Climate Change on Health, identifies the extent to which increasing emissions, extreme weather and temperatures elevate health risks, from infectious disease to
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malnutrition, and assesses the associated health burden. It concludes that the health burden will exceed the level of demand that health systems are prepared for.
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Addressing gaps and improving health system performance is simply not enough to prepare a health system to tackle the effects of the climate crisis. Climate
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change’s impact on the health and well-being of people globally is reaching catastrophic levels. As the earth continues to warm, tens of millions of people are at increased risk from rapid and unpredictable spread of infectious diseases, heatwaves, water and food insecurity and scarcity, air pollution, poverty and homelessness. Health services are often regarded as a first line defense in preventing adverse health outcomes, especially from those caused by climate impacts
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On average across 34 countries, more than half of all adults surveyed (56%) say climate change has already had a severe effect in the area where they live. More than seven in ten (71%), including a
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majority in every single country, expect climate change will have a severe effect in their area over the next 10 years. One-third (35%) expect to be displaced from their home as a result of climate change in the next 25 years.
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Climate change is resulting in poorer health outcomes, increasing mortality and is a driver of health inequities. However, health is well placed to be a significant part of the solution; the positiv
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e health impacts from stronger climate change action can motivate stronger global ambition; health systems which are resilient to climate change can help protect their populations from the negative impacts (in the short and longer terms); and sustainable low carbon health systems can make a substantial contribution to reducing national and global emissions.
This fact sheet on climate change and health is part of the Climate Fast Facts series of the United Nations Climate Action team.
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The Lancet Volume June 2020, vol.4 : e217-218
Climate change threatens to undermine the past 50 years of gains in public health. In response, theNational Health Service (NHS) in England has been working since 2008 to quantify and reduce its car
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bon footprint.
This Article presents the latest update to its greenhouse gas accounting, identifying interventions for mitigation efforts and describing an approach applicable to other health systems across the world.
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Climate change is affecting every region on Earth and already causing irreversible impacts. While it is a global phenomenon, its negative impacts are felt more intensely by poorer countries and poor
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communities heavily reliant on natural resources and lacking coping and adaptive capacities to deal with a changing climate. Within those poor communities and countries, persons with disabilities are often amongst the most marginalized people.
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Accessed on 19 July 2019.
Themes of Catholic Social Teaching important in the face of climate change.
An IPCC Special Report on climate change, desertification, land
degradation, sustainable land management, food security, and
greenhouse gas fluxes in terrestrial ecosystems
An IPCC Special Report on climate change, desertification, land
degradation, sustainable land management, food security, and
greenhouse gas fluxes in terrestrial ecosystems
An IPCC Special Report on climate change, desertification, land
degradation, sustainable land management, food security, and
greenhouse gas fluxes in terrestrial ecosystems
Heat is the top killer among all types of weather hazards, including hurricanes and tornadoes. But hospitals and health care providers do not always report heat-related illnesses or heat as an underlying cause of a death, making it hard to measure the actual impact of extreme heat on health.
Climate change is a verified, global phenomenon, but its consequences will not be evenly distributed. Developing countries and small island nations will be the most affected. Countries will experien
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ce more frequent extreme weather events and resulting changes in water quality and availability, increased contamination of air, and food security problems. Health impact due to climate change include diarrhoeal diseases, vector-borne diseases, heat stress, malnutrition, deaths and injuries due to extreme weather events and mental stress.
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Agriculture is highly exposed to climate change, as farming activities directly depend on climatic conditions. Agriculture also contributes to climate
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change through the release of greenhouse gases into the atmosphere. Two powerful greenhouse gases are by-products of agricultural activity:
Methane (CH4) – from livestock digestion processes and stored animal manure;
Nitrous oxide (N2O) – from organic and mineral nitrogen fertilisers.
However, agriculture can also contribute to climate change mitigation by reducing greenhouse gas emissions and by sequestering carbon while maintaining food production.
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The world’s climate is changing. There is scientific consensus that since 1980 global temperatures have increased by almost 1°C. Most people experience climate
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change through extreme weather events, new and re-emerging infectious disease, and the long term effects of sea level rise, impoverishment and armed conflict. This 30 minute film describes the range of morbidity and mortality of climate change related phenomena in six countries around the world.
The film describes the ways in which climate change will have – is already having – significant effects on human health. These effects are unequally distributed in terms of geographic location, social status, access to power or resources, and benefit from energy.
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Climate Central communicates climate change science, effects, and solutions to the public and decision-makers.