Menu
Science blog
Orbital mechanics affect methane levels
Antarctic lake keeps its secrets for now
How snakes lost their legs
Researchers ponder cancer origins
Forming social networks a no-brainer
'Niceness' partly genetic, say scientists
Omega-3 may keep blindness at bay
Coral shines light on rainfall records
Old bone proves Lucy was no swinger
Scientists unlock cosmic ice riddle
Study links pesticides to Parkinson's
Digital world growing faster every year
Energy drinks put kids at risk: report
Robotics speed up cancer drug development
Zinc cuts short the common cold
Counting kicks in at 18 months
NASA spacecraft unravels comet mystery
Astronomers dig up cannibalised galaxy
Study links extreme weather to climate change
Turkey quake gives warning clues
US scientists build first 'antilaser'
Website meltdown leaves scientists fuming
Earth 'unrecognisable' by 2050: experts
Canola fungus genome unravelled
Study links extreme weather to climate change
Two independent studies suggest greenhouse gas emissions are linked to more frequent heavy rainfall.

The studies, which appear today in the journal Nature, highlight the impact humans are having on extreme weather events, and come less than a month after a set of major flooding events around the world.

In one of the studies, scientists from the University of Victoria in Canada and the University of Edinburgh in Scotland, looked at rainfall totals collected between 1951 and 1999 from 6000 rain gauges across the northern hemisphere.

They found extreme rains and floods had increased by 7 per cent in the second half of last century across the Northern Hemisphere.

They then ran computer models with climate change factored in, which correlated with the rainfall pattern they observed.

"We saw that there was a pattern of change that is simulated by the climate models that is detectable in observation. So that suggests that humans influence the intensity of precipitation extremes," says study co-author Dr Francis Zwiers.

Prior to this time there had not been a study that had formally identified this human effect in extreme rainfall events.

"It has often been suggested that the changes in precipitation extremes are likely linked to greenhouse gas increases," says Zwiers.

"Our research provides the first scientific evidence that human-induced greenhouse gas increases have contributed to [more intense rainfall] events over large parts of the Northern Hemisphere."
Rainfall in the Southern Hemisphere

Dr Roger Stone, a professor in climatology and water resources at the University of Southern Queensland says "it's a robust study".

"It's part of the scientific discovery that we're going through with this interesting area of research," he says.

Stone says it is reasonable to assume that if climate change is causing more heavy rainfall in the northern hemisphere, it would also be happening in Australia.

"The CSIRO models have already demonstrated that ... certainly for a region just such as south-east Queensland, that we do get increased, enhanced deep convection under a climate change scenario," he says

In the second study appearing in Nature, an international team of scientists used computer models to replicate the events that led to widespread flooding over parts of the United Kingdom in October-November 2000.

They found that in nine out of ten cases their model suggested human-induced global warming increased the risk of flooding in the region by more than 20 per cent and in two out of three cases by more than 90 per cent.
More work to be done

Professor Roger Pielke Jr of the University of Colorado says: "It is exciting to see the application of innovative approaches to connecting the dots between greenhouse gas emissions and damage from extreme events."

But he warns the methods used in the study are still in their "infancy".

Professor Tim Palmer of Oxford University agrees.

"There remains considerabe uncertainty about the magnitude of future climate change, both regionally and globally, and these results should not be interpreted as implying that the current generation of climate models is good enough," he says.

"Refining our models, in order that we can simulate climate extremes with more fidelity, must be a priority for the future."

Print
Brain efficiency comes from parents
Backward bending light key to stealth
Signs of 'alien life' found in meteorites
Accurate blood test for Down's
Disaster volunteers at risk: study
Elephants smart as chimps, dolphins
Gadgets ruining people's sleep
Why skin doesn't dissolve in the bath
Astronomers find old heads in a young crowd
Paper leads to perfect beer head
Researchers locate brain's loudness map
Jamming may leave GPS in the wilderness
Pain washes guilt away
Quake could alter Tokyo risk: experts
Japan meltdown not like Chernobyl: expert
Dreamtime astronomers understood meteors
CERN restarts search for cosmic origins
Nuclear Contamination: What to Do
Bet-hedging 'key to natural selection'
Humans age same as other primates
US overdue, under-prepared for huge quake
Sperm's egg-seeking secrets revealed
Lasers to nudge space junk out harm's way
Researchers uncover gastro's sugary secret
Kepler probes inside swollen red giant
Randomness could 'improve democracy'
Moonageddon: Apocalypse not
Museum unveils Columbian mammoth
Menu
Ink-jet inspire scientists to make skin
Seaweed offers clues against malaria
Christchurch quakes may be connected
Solar storms pose risk to technology
Study finds fences thwart cane toad
Mobile phone alters brain activity
Sticky dots approved for clinical trial
Humans stink worse than other animals
Putting the bounce in carbon balls
Sulphur secrets uncovered
Cool laser makes atoms march in time
Hot flashes may be a sign of good heart
Scientists see the birth of a new planet
X-ray expectations change search methods
Eucalypt-harming fungus here to stay
Life elements came from outer space
Cricket wimps use perfume to find mates
Orphan planets could support life
Speech lights up visual cortex in blind
How the Sun loses its spots
Cancer resistance mechanism found
Fungus turns Amazonian ants into zombies
Tiny grains record solar system's infancy
Antarctic ice forming beneath glaciers
Visit Statistics
http://google.com/

http://bing.com/

https://gepatit-info.top/

https://serdechnic.com/

https://buy-meds24.com/

https://dverirespekt.ru/

https://www.sribno.net/

https://undergroundcityphoto.com/

https://detskiezabolevaniya.com/

http://grafaman.ru/

http://innoslicon.com/html/product/index.htm

https://yginekologa.com/

https://yes-com.com/

https://www.baikaleminer.com/

https://bitmaein.com/shop

https://www.artdeko.info/

https://aerodizain.com/

http://xn--d1abj0abs9d.in.ua/

http://lider82.ru/

http://sta-grand.ru/

http://snabs.kz/

https://sky-mine.ru/

https://rybalka-opt.ru/

http://snegozaderzhatel.ru/

https://xn--e1aaajzchnkg.ru.com/

http://hit-kino.ru/

http://www.regionshop.biz/

https://xn--80aaafbn2bc2ahdfrfkln6l.xn--p1ai/

https://pp-budpostach.com.ua/

https://vykup-avto-krasnodar.ru/

https://gcup.ru/

https://mega-polis.biz.ua/

http://vanrise.com.ua/

http://infra-e.ru/

https://veterinariya.com/

https://ponosanet.com/

https://cariestop.com/

https://proartrit.com/

https://elonm.ru/

https://nakozhe.com/

https://spinanebolit.com/

http://zameskino.ru/

http://kinoprinc.ru/

http://pospektr.ru/

http://buypillsonline24h.com/

http://komputers-best.ru/

https://komp-pomosch.ru/