The UK's weather forecaster, the Met Office, issued a rare red alert — the highest level of weather warning — for parts of Scotland, with "exceptional rainfall" expected to pose a "danger to life from fast-flowing or deep floodwater".
More than 100 dolphins have died in the Brazilian Amazon rainforest in the past week as the region grapples with a severe drought, and many more could die soon if water temperatures remain high, experts say.
LIVE: Residents in multiple locations across NSW have been told to prepare to evacuate as rain sweeps into the Gippsland region of Victoria where at least one home has been lost to bushfire.
Communities across Queensland's south-east and northern New South Wales have faced more wild weather, as powerful storms left homes without power and flights on the tarmac.
Geraldton has smashed its record for the highest temperature recorded in September in the Western Australian town as a mass of hot air moves across the state.
Australia is set to go through its worst bushfire season in four years this spring and summer, as three years of wet give way to below-average rainfall and above-average temperatures.
Trading on Hong Kong's stock market was suspended and hundreds of people were stranded at the airport after about 460 flights were cancelled in the key regional business and travel hub.
Tropical Storm Idalia headed out to sea after thrashing parts of Florida and Georgia with punishing rains and destructive winds, leaving residents to begin the arduous process of picking through the debris of devastated homes.
Hurricane Idalia has been linked to at least two deaths in Florida as it thrashes northern parts of the state and south Georgia – whipping winds up to 145km/h, dumping heavy rain and hurling seawater into flooded cities.