The parade of atmospheric rivers destroyed some of San Francisco’s oldest residents. As jessicawolfrom reports, they could take generations to return.
Some of San Francisco’s oldest residents lost their lives this week. Their bodies lay strewn across street corners, limbs severed, roots pried from the rain-soaked ground.
The collapse of these trees, some of which have stood for decades if not longer, also illustrates the delicate balancing act humanity faces between climate impacts and solutions. Trees, especially in highly urbanized areas, are increasingly billed as a way to green cities, cool neighborhoods and suck pollution from the atmosphere. But the whiplash of extreme weather is imperiling our ability to keep them in the ground.
“Organic matter and living organisms provide the foundation for soil to function properly, allowing it to take in, store and deliver water to plants,” said Bianca Moebius-Clune, the climate and soils health director at American Farmland Trust. “With better soil structure, infiltration of water into the soil improves, which allows the entire soil profile to take in and hold more water when it rains.
But San Francisco’s urban canopy is one of the smallest in the nation – and even before this week of wet weather, it has been on the decline. While the reasons for this are myriad and complex, climate change is making efforts to keep trees alive in sidewalks all the more challenging. A complex network of agencies and landowners oversees The City’s urban canopy, including the Port, Rec and Park, the Department of Public Works, the San Francisco Public Utilities Commission and UCSF.
“Cleanup will take time,” said Rachel Gordon, DPW’s spokesperson. “In some cases, crews push trees or branches out of the way, and we’ll come back and address the green debris when not dealing with imminent hazards.”
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