Chicago. Photo: JaySi/Getty Images

Plenty of governments add green space to improve physical health. Few, however, consider the psychological benefits these spaces provide.

Driving the news: Research published in the latest issue of Science Advances explains the growing evidence that suggests contact with nature can improve psychological well-being and reduce risk factors for some types of mental illness.

For example, the value of mental health benefits was calculated to be 7% of the total economic benefits of London parks, amounting to £6.8 billion ($8.3 billion) over 30 years, per a report by VividEconomics.

But, but, but: Opportunities to experience nature are decreasing rapidly as more and more people move into cities around the globe.

  • "The repercussions of these choices on mental health may add up to be quite significant on a population level" over the coming decades, the researchers wrote.

Go deeper: L.A. hires first ever forest officer (Smart Cities Dive)

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Illustration: Sarah Grillo/Axios

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  2. Health: 13 states set single-day case records last week — U.S. reports over 80,000 new cases for second consecutive day.
  3. Business: Where stimulus is needed most.
  4. Education: The dangerous instability of school re-openings.
  5. World: Restrictions grow across Europe.
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The big picture: While companies were able to set long timelines for their return, schools — under immense political and social strain — had to rush to figure out how to reopen. The cobbled-together approach has hurt students, parents and teachers alike.