Dozens have perished in Brazil's sixth-largest city after a record-breaking deluge.
Snow may have fallen at the lowest elevation ever observed in the state.
The concentration of the heat-trapping gas topped 420 parts per million, while the planet has warmed more than two degrees. This is the highest daily average concentration to be recorded. Data was collected at the Mauna Loa Observatory on the Big Island of Hawaii.
All Topics
All Countries
Any Date
Apply