Category:

“We know that spending time in nature reduces stress, but until now it was unclear how much is enough, how often to do it, or even what kind of nature experience will benefit us,” says MaryCarolHunter. “Our study shows that for the greatest payoff, in terms of efficiently lowering levels of the stress hormone cortisol, you should spend 20 to 30 minutes sitting or walking in a place that provides you with a sense of nature. It provides the first estimates of how nature experiences impact stress levels.”

Frederick Law Olmsted understood nature’s ability to rejuvenate the mind and body. One of the principal designers of Central Park in New York, he took pains to replicate the gentle beauty he saw in European parks that blended trees and shrubs, streams and bridges. “The park throughout is a single work of art,” he wrote. The relationship between humans and nature improves mental health and promotes prosocial behavior. But as cities grow, green space is squeezed out. Community leaders are finding ways to restore some of the balance.

Toronto’s urban canopy is already home to over 10 million trees, which currently envelops 26% of the city’s surface area. Mayor John Tory, however, has bigger plans for Ontario’s capital; he wants to transform Toronto into a waking ecological metropolis. A local architecture firm is helping Tory achieve his goal, in a very cool, but unconventional manner. Toronto’s version of the vertical forest may be standing as early as late 2020, proving that green space is not confined to the ground.

“Academics at the universities of Melbourne and Tasmania examined 2.2 million messages on Twitter and found that tweets made from parks contained more positive content – and less negativity – than tweets coming from built-up areas,” wrote Ross Gittins. “Why are people in parks likely to be happier? Because parks help them to recover from the stress and mental strain of living in cities, and provide a place to exercise, meet other people or attend special events.”

“My research interests focus around the ways in which different people experience, interact with, understand and represent landscape; and the desire to see a more holistic and environmentally friendly approach to planning and designing urban greenspace and green structure,” stated Anna Jorgensen. “My aim is often to challenge professional ideas about what might be publicly acceptable, and to test/explore established theoretical frameworks from different academic disciplines that are relevant to my field of enquiry.”

“Restoring this cultural and historically significant site is a vision KFN shares with Project Watershed and the City of Courtenay. KFN’s interest in the site is largely based on its strong cultural significance,” stated Chief Councillor Nicole Remple, K’omoks First Nation. “Being stewards of the lands and waters, it is inherently our duty to restore and assist in the rehabilitation of the natural habitat of the salmon and various marine and wildlife in this area. It is our hope for the future that our skilled Guardian Watchmen participate in the restoration and maintenance of the site for our future generations.”

“Environmental issues can seem monumental and overwhelming. But if you give people an opportunity to engage with something at their front door, suddenly they feel empowered to start making a positive difference,” stated Dr. Libby Gallagher. “It’s a process of empowering residents to make the right choice for their street, and enabling people to meet each other on the street. This factor is critical in building resilience. It provides people with a sense of ‘this is something that I can do’.”

The study builds on a finding that was identified by David Nowak and co-author Eric Greenfield in a ground-breaking 2012 study that found 17 out of 20 American cities had experienced significant tree loss. Nowak is worried about what will happen if the trend continues. “If it keeps going down, I think we’re going to be in trouble. Cities will warm up, we might have more pollution, people will be more unhealthy,” he said. There is robust evidence to suggest that trees are good for public health.

Smart Cities Guru founder Anil Ahuja has compiled a list of the top U.S. cities — from Washington, D.C., to Los Angeles — that have found a way to combine technology and nature. “The challenge is to raise the bar for designing net zero living while enjoying and protecting the natural world. Water, Energy, Health, Equity and Beauty can all be protected and integrated through constructive implementation of technology,” wrote Anil Ahuja.

In his article, Brian Strahan poses these questions: “What has a crystalline, winding, stream, got to do, with gaining clarity of mind? And what have the sawtooth edges, and linear veins on the leaves of an Alder tree, got to do got to do with someone’s capacity to adhere to societal norms and mores? How much vision is there on the long-term effects of living with more concrete and less space? We need to invest more in urban nature. It will improve mental health.”