希望学院的学生发现了全球潜在的水资源解决方案，跟踪并报告了 25 个发展中国家的水资源问题。我们采访了亚伦-贝斯特（Aaron Best）教授和学生乔纳斯-彼得森（Jonas Peterson）。
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媒体报道
Sawyer’s picaridin lotion lasts a long time, stores well in survival kits and cars, and doesn’t have the laundry-list poison control label like DEET sprays.
Sean Gold
Founder & Lead Writer
媒体报道
Secure a small loop of cord to a trekking pole to create a convenient place to hang a water bladder and filter water.
Nathan Pipenberg
作家
媒体报道
It contains 20 percent picaridin, a powerful insect repellent that will make nights around the campfire much more enjoyable.
Liz Provencher
Freelane Writer
