Planting Trees on Earth Day for Climate Resiliency
Thursday, April 21, 2022
Conservationists are planting trees on Earth Day to help mitigate the impacts of a warming planet.
Urban areas along Colorado's Front Range become concrete ovens during increasingly hotter summers.
And Christopher Hawkins - urban conservation program manager with the Nature Conservancy in Colorado - said cities are in a unique position to create more resilient communities, and adapt to a changing climate, by planting trees in neighborhoods with little shade.
"Trees provide a whole host of benefits, including mental-health benefits," said Hawkins, "benefits of shade from ambient air and heat reduction. They help create more oxygen, locally. They also help reduce particulate matter."
Particulate matter from burning fossil fuels, wildfires and other sources - when inhaled - can penetrate deep into the lungs and cause serious health effects. Hawkins said improving air quality will ultimately require reducing pollution, but trees can play a complimentary role.
Some studies have shown that trees can help reduce particulate matter locally by 10% to 20%.
Hawkins noted some people are more vulnerable to scorching summers than others, including people with underlying heart and respiratory conditions such as asthma.
"Those tend to be people that are hit harder, when it comes to managing heat stress," said Hawkins. "Elderly populations and communities of color tend to have disproportionate impacts from heat."
Tree canopy cover is not equally distributed in cities such as Denver.
This weekend, The Nature Conservancy in Colorado is partnering with a community-based organization to distribute and plant new trees, building on a multi-year effort to increase shade in one of the most polluted ZIP codes in the nation.
"Globeville First will be distributing about 75 trees to residents, which is pretty significant," said Hawkins. "Globeville tends to have about 5% tree canopy cover, and that's about seven times less compared to wealthier communities where you see about 35% tree canopy cover."
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