The research paper, published in the journal Environmental Research Letters, predicted that heatwaves could be 50% larger by 2050 if greenhouse gas targets aren't met.
The Japan Meteorological Agency warned that Typhoon Hagibis could be as devastating as the Kanogawa Typhoon that hit Japan in 1958, killing more than 1,200 people.
Hurricane Lorenzo has slipped from a Category 5 storm but could still bring heavy rain and high winds to the UK this week.
The UK record for the hottest August bank holiday is expected to be broken on Sunday or Monday.
Temperatures could reach 25C by next weekend after a period of heavy rain across the UK.
The RAF Chinook has been dropping huge bags of aggregate to help stem the flow of water into the reservoir at Toddbrook near Whaley Bridge, Derbyshire.
Heavy rain has caused chaos in parts of the north of the UK as flooding saw people rescued by emergency services after they were stranded, with others evacuated. A major incident was declared late on Wednesday in Poynton, Cheshire, due to “severe flooding” and early on Thursday rail lines between Manchester Airport and Wilmslow had also been disrupted by the deluge. Police have urged people not to ignore ‘road closed’ signs by driving or walking through water, warning that their car could become submerged or the road underneath could have collapsed. Cheshire Fire and Rescue Service (CFRS) said firefighters, emergency services personnel and staff from Highways England were helping those affected, with a rest centre established at Poynton Civic Hall. Poynton Fire Station said its crews had attended more than 20 incidents, including rescuing at least 11 people from floodwater in the area during a four-hour period. Police in nearby Wilmslow also said officers were “dealing with flooding” and had evacuated affected residents, with Oakenclough Children’s Centre open as a rest centre. Things were set to look up on Thursday, with the Met Office forecasting a “much drier picture” across England. Forecaster Luke Miall said only sporadic rain was likely in central and western Scotland and northern England, possibly as far south as Yorkshire.
The Met Office has issued a yellow weather warning for rain large areas of Scotland and England, with the exception of the South West region, until Sunday afternoon.
Firefighters in Saffron Walden had to smash the car window to rescue Bertie the Cockerpoo who had been left locked inside.
A new record temperature for 2019 was set on Saturday, with 34C (93.2F) recorded at Heathrow and elsewhere in west London - just short of the 35.6C (96F) June record set in 1976.
Temperatures in Britain over Friday and Saturday are expected to top 30 degrees as the heatwave arrives over the Channel
Temperatures could reach as high as 35C in London on Saturday, as Europe braces for a heatwave.
Homes were left without power and roads were flooded in parts of the South East.