Apr 29, 2016 by


This might seem like old news. But the Climate and Health Assessment connects the dots between climate change and its consequences for American public health more clearly than ever before. The new report (which is the product of three years of research by 13 federal agencies) emphasizes that climate change will continue to exacerbate existing threats to health as well as give rise to new ones.

But like many scientific reports, it can get a little dense. So with some help from our friends at Climate Nexus and the American Public Health Association, here are four key findings from the assessment illustrated in infographics.

1. Climate change is expected to cause more frequent and intense extreme weather events.


Extreme weather events – like floods, wildfires, and drought – can be terrifying, but what do they have to do with public health? These events can (of course – and unfortunately) have fatal consequences, but they can also lead to food and waterborne illnesses after the fact. Furthermore, if public infrastructure – like communication systems or emergency response services – is damaged during an extreme event, access to lifesaving care is jeopardized.

The report is also one of the first of its kind to study how climate change impacts mental health, noting that people “exposed to climate- or weather-related natural disasters experience stress reactions and serious mental health consequences, including symptoms of post-traumatic stress disorder (PTSD), depressions, and general anxiety.”

It’s also important to note that lower-income communities, children, the elderly, and some communities of color are disproportionately affected by extreme weather. Just as Pope Francis has said, “The deterioration of the environment and society affect the most vulnerable people on the planet.”

>> Related: Oh Buoy, What’s Happening with Sea-Level Rise? <<

2. Climate change and air pollution can aggravate asthma and allergies.

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Greenhouse gas emissions from fossil fuels not only pollute our air directly; they also drive climate change, which can indirectly affect the quality of our air. In 2015, the continental US experienced its second-warmest year on record, with the average temperature 2.4F above the twentieth century average. Things are heating up!

As the climate has become warmer, weather patterns change, contributing to higher levels of air pollution like ground-level ozone that can “cause premature deaths, hospital visits, lost school days, and acute respiratory symptoms.”

And that’s not all. The report also predicts wildfires will flare up more and more often, releasing more and more particles into the air and raising the threat of respiratory and cardiovascular diseases. Plus, warming temperatures and rising levels of carbon pollution are expected to lead to higher levels of the allergens that contribute to asthma and other illnesses.

3. Climate change can help spread a whole host of vector-borne diseases.


So, what’s a vector-borne disease? Vector-borne diseases are illnesses spread by insects or arachnids (the vectors) like mosquitoes, fleas, mites, or ticks. And as our climate changes, it’s likely that so too will how far they travel – and how the diseases they carry spread.

For example, the Climate and Health Assessment found that “rising temperatures, changing precipitation patterns, and a higher frequency of some extreme weather events associated with climate change will influence the distribution, abundance, and prevalence” of some vectors like the mosquitos that carry the West Nile virus. In plain terms, they’re expected to range further north and have a longer breeding season. That means a higher probability of Americans contracting this and other illnesses.

4. Climate change will cause rising temperatures, potentially leading to 150,000 deaths in the US by 2100.


As temperatures rise with climate change, scientists expect intense heat waves to happen more frequently, leading to more and more premature deaths. As with other types of extreme weather, increasing heat hits children, the elderly, and low-income communities the hardest through related illnesses including cardiovascular and respiratory diseases as well as diabetes and mental-health issues.

The White House notes that “even small differences from seasonal average temperatures result in illness and death.  An increased risk for respiratory and cardiovascular death is observed in older adults during temperature extremes.”

The bottom line? Healthy people need a healthy planet.

EPA Administrator Gina McCarthy said it best: “This isn’t just about glaciers and polar bears. It’s about the health of our family and our kids. To protect ourselves and future generations, we need to understand the health impacts of climate change that are already happening, and those that we expect to see down the road.”

Climate change poses an immediate and serious threat to human health not just in the United States, but around the globe. The good news is that how we respond to this threat – and how healthy a world we live in – is up to us.

In the US last year, the EPA introduced the Clean Power Plan, a historic step towards reducing greenhouse gas emissions, stopping climate change, and protecting human health. In fact, if implemented, the plan is expected to avoid over 90,000 asthma attacks in children by 2030.

But after a lawsuit by the fossil fuel industry and its government allies, the Supreme Court hit pause on the Clean Power Plan in March. Now it’s up to us – the millions living with the consequences of climate change every day – to protect this vital rule.

Take action today. Stand up for public health and for the Clean Power Plan by downloading our activist kit today. Then, sign up below for our email activist list to learn what else you can do.



1 Comment

  1. What about famine and lack of drinking water? Farm lands worldwide are going to be impacted by this, and to me that seems much worse than people dying of heatstroke as I’d expect the consequences to be much more far-reaching even outside the areas that are significantly warmer. Many countries import at least a proportion of their food.

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