They are dropping food and medical supplies by helicopter to the most remote communities, but the steep mountains make even that a hazardous process.

他们使用直升飞机向最偏远的地区投递食品和医疗补给，但是陡峭的大山使得空投过程也非常有危险。

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Ilya Raskin of Rutgers University says plants can help clean up hazardous waste sites through a process of phytoremediation.

CNN: Flower power

One example is the nanolithography used in chip making, which eliminates process chemicals that are hazardous to the environment.

FORBES: Nanotech Vs. The Green Gang

This is a messy process that takes several days and requires workers to wear respirator suits to protect themselves from hazardous materials as they sand, prime, mask and repaint the aircraft.

ECONOMIST: It’s a wrap | The