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.

Researchers develop anti-bacterial graphene face masks

Face masks have become an important tool in fighting against the COVID-19 pandemic. However, improper use or disposal of masks may lead to "secondary transmission". A research team from City University of Hong Kong (CityU) ...

People power key to getting through COVID-19 pandemic

The strength of connections, be it human connections within cities, or collaborative networks between cities, has been a key factor in determining how effectively the world's biggest cities have been able to navigate the ...

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