US cities are losing 36 million trees a year. Here's why it matters and how you can stop it

Amy Chillag

2019-08-26

CNN

Keywords: Urban Tree Loss, Urban Heat Mitigation, Tree Canopy Cover, Urban Sustainability, Environmental Health, Urban Planning

Nowak says there are many reasons our tree canopy is declining, including hurricanes, tornadoes, fires, insects and disease. But the one reason for tree loss that humans can control is sensible development.

The article highlights that cities across the United States are experiencing a significant decline in tree cover, losing an estimated 36 million trees each year. This alarming trend is attributed to a combination of factors including natural disasters, pests, diseases, and urban development. The consequences of this loss are profound, as trees are essential for mitigating urban heat, reducing temperatures by up to 10 degrees Fahrenheit. They also play a crucial role in improving air quality, conserving energy, and enhancing the overall well-being of urban environments. The study, conducted by the US Forest Service, reveals a 1% decrease in tree cover between 2009 and 2014, with the potential for even greater losses if current trends continue. The economic impact of this decline is significant, with an estimated $96 million lost annually due to the benefits foregone from removed trees. To address this issue, the article calls for increased efforts in tree preservation and planting, highlighting the need for at least 40% tree canopy cover in urban areas to fully realize the cooling and health benefits that trees provide. It's a call to action for city planners, residents, and policymakers to recognize the value of trees in creating sustainable and livable urban spaces.

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Tags: tree cover loss, urban heat island effect, tree benefits, urban sustainability, tree planting, urban planning, environmental impact, climate mitigation, public health, urban ecosystems, green infrastructure, canopy cover