Processes like La Niña set the scene for the sort of extreme weather that has hit eastern Australia. But what decides which towns and suburbs are hit hardest, and which ones are spared?
Catchments are full. Dams are at capacity, soils are saturated and rivers are high. In some cases, there’s nowhere for the rains to go except over land.
Driving into floodwater is the leading cause of flood-related death. So why do people do it?
Maria Khoza collecting water from the City of Tshwane municipality after a short closure of the a treatment plant caused by a sewage leakage in 2019.
Phill Magakoe/AFP/GettyImages
By following moisture from the oceans to the land, researchers worked out exactly how three oceans conspire to deliver deluges of rain to eastern Australia.
Chelsea Jarvis, University of Southern Queensland dan Scott Power, University of Southern Queensland
Many farmers are welcoming an expected summer of La Niña rain, while others have been hit by heavy rain and floods
Six-year-old Makai'ryn Terrio, centre, cools off with his brothers as they play in water fountains in Montréal. The city had its hottest August on record.
The Canadian Press/Graham Hughes
Southern Québec is warming twice as rapidly as the rest of the world due to the progressive loss of snow cover. An average annual warming of 3 C to 6 C is expected by the end of the century.
Extreme downpours and flooding like northern England experienced in 2015 can put lives at risk.
Ian Forsyth/Getty Images
Water-related hazards are exceptionally destructive, and the impact of climate change on extreme water-related events is increasingly evident, a lead author of the new report warns.
Etching of the 1867 flood in the Hawkesbury-Nepean Valley, depicting the Eather family.
illustrated Sydney News/author provided
New research shows that one-third of yearly nitrogen runoff from Midwest farms to the Gulf of Mexico occurs during a few heavy rainstorms. New fertilizing schedules could reduce nitrogen pollution.