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Commentary: We call it climate change. It’s more like a global health crisis

GENEVA: The climate crisis is also a health crisis.

The same emissions that cause global warming are also largely responsible for polluting the air we breathe, causing heart disease, stroke, lung cancer, and infections, and affecting every organ in our bodies.

Air pollution is the new tobacco, causing as many deaths as cigarettes do. And though it threatens us all, children, the elderly, pregnant women, and adults with weakened immune systems are the most at risk.


It is now common knowledge that smoking tobacco severely harms you and those around you.

That is why the tobacco industry’s lobbying and advertising campaigns have been strictly regulated around the world. Globally, we have taken steps to safeguard existing health policies, and to force these companies to tell the truth: That their product kills.

And yet, our reaction is very different when we learn that air pollution and fossil-fuel-driven climate change are just as deadly.

READ: Commentary: I care about climate change. I don’t wish to live in a Waterworld like Kevin Costner

Where are the policies to prevent the fossil-fuel industry from lobbying governments, or to end the US$370 billion in subsidies lavished on coal, oil, and gas companies every year? Why are we still paying for a product that is killing us?

As with the world’s strong response to tobacco, ending harmful fossil-fuel use will require scaling up current policy interventions and social-mobilisation efforts.

Fortunately, some multilateral financial organisations have already recognised the opportunity that such a change represents.

Haze from the ongoing bushfires covers the Sydney Opera House in Sydney, Australia

Haze from the ongoing bushfires covers the Sydney Opera House in Sydney, Australia November 21, 2019. (File photo: REUTERS/John Mair)

READ: Commentary: Here’s how to accelerate and fund the climate action revolution the world wants

Just recently, the European Investment Bank announced that it would end all of its funding for unabated fossil-fuel projects, and use its position to funnel public and private capital toward renewable energy.


The choice between phasing out fossil fuels and continuing on the current path is black and white – it is a matter of life or death.

We either will decide to prevent 7 million premature deaths per year by cleaning up our air and providing people with clean energy sources, or we won’t.

We either will decide to prevent 4 million childhood asthma cases per year from traffic fumes, or we won’t.

In any case, the lifetime health of a child born today will be profoundly affected by the decisions we make about climate change now and in the years to come. That is why the World Health Organisation has made climate change a top institutional priority.

Bushfires are common in the country but scientists say this year's season has come earlier and

Bushfires are common in the country but scientists say this year’s season has come earlier and with more intensity due to a prolonged drought and climatic conditions fuelled by global warming AFP/PETER PARKS


Climate change should be a priority for all businesses, governments, and multilateral organisations, too. Keeping the issue high on the agenda provides the necessary motivation to make difficult choices.

By taking action now to reduce carbon dioxide emissions and limit global warming to no more than 1.5 degree Celsius relative to the pre-industrial level, we would not only ensure that our planet remains hospitable for future generations; we could also save at least one million lives per year, according to WHO’s estimates.

Moreover, in countries like the United States and the United Kingdom, eliminating air pollution would save the economy 4 per cent of GDP per year in averted healthcare costs.

READ: Commentary: Air pollution’s nasty effects should motivate stronger action but hasn’t

In China and India, reducing emissions enough to limit global warming to 1.5 degree Celsius would more than pay for itself when accounting for the attendant health benefits.

Likewise, transforming our food and transportation systems would save still more lives, by providing healthier diets and encouraging more physical activity – all while cleaning the air and stabilising the climate.

The toxic air in New Delhi has taken pollution levels to almost 20 times World Health Organisation

The toxic air in New Delhi has taken pollution levels to almost 20 times World Health Organisation safe limits AFP/Sajjad HUSSAIN


The human right to a healthy life and a sustainable future is increasingly being enforced through legal systems, and officials that fail to uphold these rights are being held accountable.

In France, for example, a court found that the government had failed to do enough to limit air pollution around Paris, and in Indonesia, Jakarta residents similarly took legal action against the government because of air pollution.

READ: Commentary: Jakarta’s air quality kills its residents – and it’s getting worse


At this year’s United Nations General Assembly, many governments answered the WHO’s call to achieve “air quality that is safe for citizens, and to align climate change and air pollution policies by 2030.”

This represents an encouraging first step. Now, many of the countries with the heaviest health burden from air pollution need to phase out their highest-pollution energy sources.

At WHO, we will continue to push for action on these issues, while collaborating with others who are doing the same.

READ: Commentary: Climate activists are’t just irking businesses. They’re setting capitalism on fire

Like the pollution that causes it, climate change does not observe national borders; it does not save its effects just for those who pollute.

On the contrary, inequality is a key feature of the climate crisis: Those least responsible for the problem – children, disadvantaged communities, and the Global South – must bear a disproportionate share of the health burden.

Greta Thunberg

Activist Greta Thunberg attends a press conference where 16 children from across the world, present their official human rights complaint on the climate crisis to the United Nations Committee on the Rights of the Child at the UNICEF Building. (Photo: AFP/Kena Betancur)

WHO’s new global survey shows that many countries are highly exposed, vulnerable, and unsupported in dealing with health risks from climate change and air pollution.

It is clear that we need an international and just response to this increasing strain on public health. Future efforts must reflect the real costs of our fossil-fuel based economy and aid those most affected.

To achieve this, we will need all signatories to the Paris climate accord to strengthen their national climate plans by 2020.

Beyond that, we need to establish new, robust mechanisms for protecting the most vulnerable and helping communities adapt to the realities of climate change.

Health must be at the heart of our Paris commitments. The pollution that is choking our air and warming our planet has been accumulating for generations. 

We cannot afford to take that long to fix the problem.

Maria Neira is Director of the Department of Public Health, Environmental and Social Determinants of Health at the World Health Organisation.

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