Hurricane Delta weakens as it heads towards Mexico

Hurricane Delta lost strength Wednesday as it churned towards Mexico's Caribbean coast, where thousands of tourists hunkered down in emergency shelters in a string of major beach resorts.

Fighting pandemics with plasma

Most types of personal protective equipment, like N95 masks, gowns, and gloves, are designed for single use, which has led to both scarcity and waste during the COVID-19 pandemic. But new research suggests these vital supplies ...

As Brazil's wetlands burn, rain is 'only hope'

Lieutenant Silva's face is grim as he watches his firefighters try—and fail—to control one of the thousands of wildfires ravaging Brazil's Pantanal, the world's biggest tropical wetlands.

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Mask

A mask is an article normally worn on the face, typically for protection, disguise, performance or entertainment. Masks have been used since antiquity for both ceremonial and practical purposes. They are usually worn on the face, although they may also be positioned for effect elsewhere on the wearer's body, so in parts of Australia giant totem masks cover the body, whilst Inuit women use finger masks during storytelling and dancing.

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