Torrential downpours trigger flooding, disrupting subway service as authorities declare a state of emergency.

Torrential downpours trigger flooding, disrupting subway service as authorities declare a state of emergency.
A group of young activists is suing dozens of governments in Europe and beyond.
Japanese scientists have found between 6.7 and 13.9 pieces of microplastic in each litre of cloud water tested.
Vierra family are among first group of Lahaina residents able to return home after blazes swept across Hawaiian island.