Izzy Braithwaite

Originally published at: http://www.rtcc.org/2013/05/27/comment-health-overlooked-in-our-response-to-climate-change/

The protection of human health and wellbeing is a central rationale for the emissions reductions called for in the very first article of the UN Framework Convention on Climate Change (UNFCCC). Yet, somehow, the issue is missing from many parts of the UN talks.

The growing body of research and evidence in the area over the past couple of decades hasn’t really translated into a broader understanding of how climate change and health are related, beyond a relatively small community of academics and health professionals.

Knowledge about the links between climate and health among the public, climate negotiators and environmentalists is often limited and quite superficial. It typically doesn’t stretch far beyond the more direct impacts, such as heatwaves, vector-borne diseases or extreme weather events such as flooding.

Indirect effects on health are rarely considered, and both the media and the public tend to frame the impacts of climate change in terms of the risks to ecosystems and species or economic losses; very rarely in terms of its other impacts on people and their health.

Perhaps this is part of why climate mitigation and adaptation measures fail to get the levels of both political and financial support they need to tackle climate change and to protect and promote health in the face of it: current levels of adaptation finance, much like current emissions reductions pledges, are grossly inadequate.

As a glance at any newspaper or polls about the relative political importance of different topics make clear – most of us are concerned about our own health and the health of those we care about, including that of our children and grandchildren and less visible problems like climate change, which are also delayed in time, often feature far below this on the agenda.

Climate change will dramatically affect the health of today’s children and young people, and more than that, policies to promote the health ‘co-benefits’ of sustainability and climate action could greatly improve health.

Surely those messages, if communicated more effectively, could be a strong driver to help us achieve the sort of rapid, meaningful changes we need in order to avoid catastrophic climate change - couldn’t they?

In the UK, several thousand health professionals have joined the Climate and Health Council to add their voice to a global climate and health movement which already has strong voices in Australia, Europe and the US, along with several other regions, and they are starting to connect up, for example with the Doha Declaration.

Doubt is their product...

At the same time, communication with negotiators, the mainstream media and the wider public around what’s known about climate and health clearly hasn’t yet been very effective, and has been compounded by the confusion that biased and inaccurate media such as Fox News and the Murdoch empire seek to create.  This is very much like the 'merchants of doubt' phenomenon that emerged among tobacco companies as the evidence of tobacco's health risks came to light.

One of my friends recently asked me when he saw this video, “if climate change is really such a big health threat, then why don’t most people know that, and why isn’t it mentioned more in the news?”

I’m convinced by the evidence that it is – some of it is collected in our resources section– but I found it hard to answer his question.  Have we all, consciously or subconsciously, decided that it’s too depressing so we don’t want to know, do the media decide it’s not worth broadcasting, is it related to the success of fossil fuel companies and their PR and lobbying teams, or is it something else?

I don’t have the answers, but I think there are many reasons: for one, picking out long-term trends to ascertain what health impacts are attributable to climate change is no easy task, and – especially when it comes to modelling future health impacts which are often highly dependent on socioeconomic factors too – the science is far from simple.

Predictions, of necessity, depend on various assumptions and on multiple interacting factors. As with climate change in general, the real-world effects are highly uncertain: not because scientists think health might be fine in a world four or six degrees hotter, but because it’s very hard to work out exactly how bad the impacts may be.

Even the World Bank now explicitly recognises that this is what we’re currently on course towards, that it’ll be far from easy to adapt to, and that such a temperature rise would conflict greatly with its mission to alleviate poverty.

The dangers of ignoring Black Swans

As George Monbiot pointed out in characteristically optimistic style last year, mainstream global predictions for future food availability in the face of climate change may be wildly off – because they’re based only on average temperatures rather than the extremes.  A fatal error if this is true that the extremes – droughts, wildfires and so on – could become the main determinant of global food production, interacting with other changes to affect in ways that, like Taleb's 'Black Swan' events, are almost impossible to predict.

If this does turn out to be the case, it’s likely that by far the biggest health impact of climate change will be malnutrition, as argued by Kris Ebi, lead author of the human health section of the last IPCC report.  Inadequate food intake not only increases vulnerability to infectious diseases such as malaria, TB, pneumonia and diarrhoeal disease, but also kills directly through starvation.

Food insecurity, in turn, can force people to migrate just as something more obvious like sea-level rise can, and this can be a driver of civil conflict.  Both migration and conflict of course have major physical and health impacts, but their extent and distribution depend on numerous other things; climate is one driver among many.  Like any give extreme weather event, it’s hard to attribute indirect effects of climate change such as these to climate change, given how strongly it interacts with other contextual factors. But that doesn’t mean it’s not a causal relationship.

As the Millennium Ecosystem Assessment showed in 2005, our health and wellbeing ultimately depends on ecosystem functioning and stability, at levels from local to global. How ecosystems and in turn health are being – and will be – affected by climate change is unavoidably complex. That makes it hard to communicate and hard to use to change policy, but we cannot allow this to stop effective advocacy and action.

The fossil fuel industries and the many dubious institutions and individuals they fund will not wait: with billions made from the sale of coal, oil and gas, they are much better organised and resourced than us at present, and they will use every opportunity to maintain doubt, prolong inaction and ensure that our future isn’t allowed to compromise their sales.

In order to extend a sense of the importance of climate action beyond the environmental community and to secure broad and deep consensus on the need for concerted action, health must play a much bigger role in decision-making at all levels.  Both impacts and health co-benefits need to feature more centrally in national mitigation and adaptation plans, and in our discussions around climate change more generally.

That shift won’t happen on its’ own, and with the Bonn UNFCCC intersessionals coming up in June, it strike me that health should be a priority.  Better resourcing and a comprehensive work programme including capacity-building, education and raising public awareness on subjects specific to climate and health would be a tangible and positive way to protect and promote health and to reduce the impacts of climate change on the most vulnerable.

The issue of climate-forced migration, and its impacts on human health, is a discourse that is often underplayed when it comes to discussions about climate impacts and adaptation.  The ramifications of ignoring it, and consequently failing to put in place appropriate policy frameworks to cope with increased levels of migrants at an international level, will be huge.  The health problems associated with climate-related migration also pose a major challenge for existing healthcare systems and the international humanitarian response. 

According to International Organisation for Migration and United Nations figures, between 200 million and 1 billion people could be forced to leave their homes between 2010 and 2050 as the effects of climate change worsen, potentially inundating current response strategies.

Climate change migration is already happening across the world - right now. 

Some are migrating because of the direct impacts of natural disasters like floods, droughts and acute water shortages.  Whilst indirect impacts such as conflict and increases in food prices can also contribute to people being forced to leave their homes.

There is no doubt that forced migration due to climate change will increase the pressure on existing infrastructure and urban services, especially in sanitation, education and social sectors and also consequently increase the risk of conflict over access to scare resources, even amongst migrants.

A study released on 28 November, entitled ‘where the rain falls: climate change, food and livelihood security, and migration’ reveals a much more nuanced relationship between projected climate variability and migration, which could provide key insights into likely drivers of migration the coming years.  The study, carried out by CARE International and UN University, in 8 countries in Asia, Africa and Latin America, revealed that in nearly all instances in which rains have become too scarce for farming, people have migrated, but mostly within national borders. 

At a side event at COP18 on this issue last week, one of the authors, Dr Koko Warner, remarked that "those resilient households use migration to reduce their exposure to climatic variability… In those households, migrants are in their mid-20s, single, move temporarily and send remittances back home. Those resilient households use migration to invest in even more livelihood diversification, education, health and other activities that put them on a positive path to human development."

However, there are also much starker consequences for more vulnerable households:

1. Households may migrate in an attempt to manage risk but suffer worse outcomes.  They are found in countries with less food security and fewer options to diversify their incomes. They move within their countries seasonally to find work, often as agricultural labourers.

2. The study also described how migration could be an ‘erosive coping strategy’; as a matter of human security, when few other options exist. These households are found in areas where food is even scarcer. They often move during the unpredictable dry season to other rural areas in their regions in search of food or work.

3. Lastly, the study found "households that are trapped and cannot move, and are really at the very margins of existence," according to Warner. These households do not have the capacity to migrate.

Health policy making in the context of migration can either been seen as a human rights issue, putting the needs of the individual first, or as a security issue, in terms of its threats to public health (eg. communicable disease control) and social stability.  The latter approach relies principally on monitoring, surveillance and screening, and could be argues to be the modern-day cousin of centuries-old quarantine measures, without an individual-focused perspective.  The human-rights based approach takes into account nuances and special needs of individuals, as well as the social determinants which may have affected individuals’ health along the migratory pathway.

With respect to the UNFCCC process, the response to environmental migration is an area that is particularly underdeveloped.

The negotiating text elaborated at Tianjin in 2010 invited Parties to enhance adaptation action under the Adaptation Framework through: [‘m]easures to enhance understanding, coordination and cooperation related to national, regional and international climate change induced displacement, migration and planned relocation, where appropriate’.  The Cancun agreement in 2010 took some strides forward and laid out a roadmap for progress with reference to migration, but as yet it hasn’t been implemented, and highlights the need for better and more equitable policy at a global level.

As Jane McAdam observes: “Finally—and perhaps most significantly—there seems to be little political appetite for a new international agreement on protection. As one official in Bangladesh pessimistically observed, ‘this is a globe for a rich man’.

In “Migration and Climate Change,” a recent publication by UNESCO, Stephen Castles, Associate Director of the International Migration Institute at the University of Oxford suggests that we may need to re-think our strategy.  “The doomsday prophesies of environmentalists may have done more to stigmatize refugees and migrants and to support repressive state measures against them, than to raise environmental awareness.”

We should be doing more, much more, to raise awareness of this issue, and we must start preparing to cope effectively with the health issues associated with it.