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House fire Credit: Wikipedia

We all use plastic products in our daily lives. Our houses are usually full of plastics, especially modern houses. Examples: much furniture (e.g., engineered wood), upholstery fabrics (e.g., polyester), rugs (e.g., polyolefin), flooring (vinyl), foam in mattresses, synthetic fabric clothing, even the acrylic paint on our walls, and outdoor vinyl siding - it's all made with plastics from petrochemicals.

And when it burns in a fire, it's toxic and harmful to breathe.

Watch the video made by the UL Fire Safety Research Institute that show side- by-side burn comparisons between natural and synthetic furnished rooms. Pretty shocking! And yes, the all natural materials (e.g., wood, cotton) burned much slower and the smoke was less toxic than the synthetic materials. Flashover time (when escape becomes impossible) was under 5 minutes in the synthetic furnishing room and over 30 minutes in the natural furnishings room.

The following The Atlantic article sums up the dangers nicely. One vivid example is pointing out that most of our modern sofas are "basically blocks of gasoline". These are good reasons to consider using more natural materials in our homes (cotton, wood, glass, steel, etc.).

Excerpts from The Atlantic: What Happens When a Plastic City Burns

As flames rip through Los Angeles County, burning restaurants, businesses, and whole blocks of houses, it’s clear that the threat of urban fire has returned to the United States. But this time, the urban landscape is different: Modern homes are full of plastic, turning house fires into chemical-laced infernos that burn hotter, faster, and more toxic than their predecessors. ...continue reading "The Plastics In Our Homes Are Toxic In A Fire"

General Sherman, a giant sequoia tree. Credit: Wikipedia, Kimon Berlin

Trees that are several thousand years old in California's Sequoia National Park are in danger of being destroyed in this month's wildfires. Things are currently so bad that the base of some of the world's largest trees are being wrapped in aluminum fire-resistant blankets.

The trees being wrapped are giant sequoias, and the largest tree of all is called General Sherman. This tree is about 2200 to 2700 years old, 275 feet tall, over 36 feet in diameter at the base, and with a circumference of 102.6 at the base. (Almost as tall as the Statue of Liberty!).

Giant sequoia trees are adapted to fire, but both drought conditions and fires are getting more intense (climate change!) and can overwhelm them. Last year's Castle Fire destroyed an estimated 7500 to 10,600 mature giant sequoia trees that ranged in age from hundreds to 3000 years old. This is about 10 to 14% of these trees on Earth!

Giant sequoia base wrapped in fire-proof blanket. Credit: National Park Service, Sept. 16, 2021

From The Guardian: World’s largest tree wrapped in fire-resistant blanket as California blaze creeps closer

As flames crept closer to California’s cherished sequoia trees firefighters took an unusual step to protect them, wrapping the giant bases in fire-resistant blankets.

The shiny material that helps quell flames, commonly used to protect structures, is rarely applied to natural features, but crews fighting the KNP Complex fire in the Sequoia national park said they are doing everything possible to protect the iconic trees. ...continue reading "Giant Sequoia Trees Wrapped In Fire Resistant Blankets"