New Study Reveals Possible Future Health Impacts Related to Climate Mitigation

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New study reveals possible future health impacts related to climate mitigation:

Reduce fossil fuel use and air quality will improve, right? It might not be as straightforward as it appears, according to a Penn State-led research team. They explored almost 30,000 simulated future scenarios and found that some climate mitigation efforts could lead to harmful health impacts in certain geographic areas.

Their results were published May 18 in Nature Sustainability.

"In general, reducing fossil fuel use is good for climate mitigation and good for cleaning up the air, and the modeling studies have always found health benefits from climate mitigation," said corresponding author Wei Peng, assistant professor of international affairs and of civil and environmental engineering at Penn State, who has conducted research in this area for a decade. "But in this study, for the first time, we were able to see potential co-harm occur in a certain part of the scenarios."

The researchers found some scenarios where fossil fuel reduction requires a significant land use change to grow bioenergy resources, such as algae and plants like corn stalks and barley straw that can be used to create biofuels including types of ethanol and biodiesel.

In these scenarios, deforestation could occur on a grander scale for certain areas, such as Russia and Canada, leading to worsening air quality. As a result, people in these areas with worsened air quality could suffer from more respiratory and cardiovascular diseases, which could lead to more premature deaths, said the researchers.

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