2017年04月24日:黑海的白色战役-(A White Battle in the Black Sea)

2017年04月24日:黑海的白色战役-(A White Battle in the Black Sea)

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2017-04-24 / 0 评论 / 0 阅读 / 正在检测是否收录...

2017年04月24日:黑海的白色战役-(A White Battle in the Black Sea)
2017年04月24日:黑海的白色战役-(A White Battle in the Black Sea)--原图下载


Image Credit: NASA, Aqua, MODIS
说明: 数十兆的生命葬身在地球的海洋里。而部分死者的钙化盾牌,叠出了多佛的白色悬崖球形淡色的单细胞植物、名为球菌藻的浮游植物和更小钻石状病毒、名为藻类去氧核糖核酸病毒的战斗,持续了数千万年。为了进行备战,球菌藻吸收了大气里的二氧化碳来製作白垩盔甲。这场战役的规模是如此之庞大,以至于球菌藻移走了地球大气中大量的二氧化碳,从而提供适合包括人类在内的动物呼吸的空气。在这幅由美国航太总署水卫星所拍摄的2012年影像里,黑海球菌藻华而变成淡蓝色。

原文:

Image Credit: NASA, Aqua, MODIS
Explanation: Trillions have died in the Earth's seas.Calcified shields of the dead already make up the white cliffs of Dover.The battle between ball-shaped light-colored single-celled plants -- phytoplankton called coccolithophores -- and even smaller, diamond-shaped viruses dubbed coccolithoviruses -- has raged for tens of millions of years. To help fight this battle, the coccolithophores create their chalky armor by absorbing carbon dioxide from the atmosphere. This battle is so epic that coccolithophores actually remove a significant fraction of Earth's atmospheric carbon dioxide, bolstering the breathability of air for animals including humans.Pictured in this 2012 image from NASA's Aqua satellite, the Black Sea was turned light blue by coccolithophore blooms.

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