Jenna Ladd| July 24, 2017
This week’s On The Radio segment describes how climate change will have a disproportionate economic impact on urban areas.
Transcript: A recent study by an international group of economists found that climate change will likely cost cities twice as much as rural areas.
This is the Iowa Environmental Focus.
The study, published in the journal Nature Climate Change, found that the largest quarter of the world’s cities could see more intense temperature spikes by 2050 due to the combined effect of global warming and urban heat island effects. Urban heat islands are formed when naturally cooling surfaces like vegetation and bodies of water are replaced by surfaces that trap heat like concrete and asphalt.
Higher temperatures in cities have negative economic impacts including less productive workers, higher cooling costs for buildings and poorer water and air quality. On average, the global gross domestic product (GDP) is expected to drop by 5.6 percent by 2100 due to climate change. The combined climate change and heat island effect means that the most-impacted cities are expected to lose about 11 percent of their GDP in the same period.
The economists noted that some actions can be taken to mitigate these effects including installing cooling pavements and green roofs and reintroducing vegetation in urban areas.
To read the full story and for more information, visit iowa-environmental-focus-dot-org.
From the UI Center for Global and Regional Environmental Research, I’m Betsy Stone.