A "systematic and comprehensive" approach is needed to understand the impact of human behavior on the world's public health, according to a new report. Written by the Heal (Health & Ecosystems Analysis of Linkages) consortium, the study highlights multiple examples of the impact on human health from environmental degradation, including sickness, death and even childhood reductions in IQ.

 

For example, the report cited that smoke from fires used to clear rainforests in Indonesia has been linked to a rise in cardiopulmonary disease in Singapore. Other examples include the destruction of coastal barrier systems like coral reefs and wetlands, which currently protect around one third of humanity (those living within 100km of the ocean) from rising sea levels. Meanwhile, as biodiversity and natural habitats decline, local access to wild meat falls as well. Lack of protein increases the chances of iron deficiency anemia, a condition that can hinder the learning potential of children as well as their physical ability.

 

Co-author of the report Samuel Myers said that "more than anything else the point of this paper is that most of these relationships remain poorly characterized and we worry as much about the surprises, like food's nutritional value falling with rising C02, as the relationships that we already understand."

 

The report also examines the demographics most likely to be affected. Myers, with the Harvard University of Public Health, explained what he describes as an "environmental justice dimension."

 

"The impacts of both climate change and other types of environmental change are likely to be experienced disproportionally by the poor and by future generations whereas many of the benefits associated with these changes accrue to the wealthier and to current populations," he notes.