Friday, June 17, 2011

Get used to mega-fires in the US west

Chip Ward in CBS News: Arizona is burning. Texas, too. New Mexico is next. If you need a grim reminder that an already arid West is burning up and blowing away, here it is. As I write this, more than 700 square miles of Arizona and more than 4,300 square miles of Texas have been swept by monster wildfires. Consider those massive columns of acrid smoke drifting eastward as a kind of smoke signal warning us that a globally warming world is not a matter of some future worst-case scenario. It’s happening right here, right now.

Air tankers have been dropping fire retardant on what is being called the Wallow fire in Arizona and firefighting crews have been mobilized from across the West, but the fire remained “zero contained” for most of last week and only 18% so early in the new week, too big to touch with mere human tools like hoses, shovels, saws, and bulldozers. Walls of flame 100 feet high rolled over the land like a tsunami from Hades. The heat from such a fire is so intense and immense that it can create small tornadoes of red embers that cannot be knocked down and smothered by water or chemicals. These are not your grandfather’s forest fires.

Because the burn area in eastern Arizona is sparsely populated, damage to property so far has been minimal compared to, say, wildfire destruction in California, where the interface of civilization and wilderness is growing ever more crowded. However, the devastation to life in the fire zone, from microbiotic communities that hold soil and crucial nutrients in place to more popular species like deer, elk, bear, fish, and birds -- already hard-pressed to cope with the rapidity of climate change -- will be catastrophic.

…And if evolving at warp speed (while Mother Nature experiences hot flashes) isn’t enough, plants, animals, and birds are struggling within previously reduced and fragmented habitats. In other words, wildlife already thrown off the mothership now finds the lifeboats, those remnants of their former habitats, on fire. Sometimes extinction happens with a whimper, sometimes with a crackle and a blast….

Smoke from the Wallow Fire in Albequerque, New Mexico, shot by John Fowler, Wikimedia Commons via Flickr, under the Creative Commons Attribution 2.0 Generic license

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