Skip Nav | Home | Mobile | Editorial Guidelines | Mission Statement | About Us | Contact | Help | Security | Support Us

World

Weather goes off the charts: is it climate change?

Ben Courtice | 13.02.2011 02:53 | Analysis | Climate Chaos | Ecology | Sheffield | World

In the space of a few weeks, Australia and the world have been rocked by devastating weather events, from huge snowstorms across the US to flash flooding and cyclones in Australia. Many of these events have not just been catastrophic, but have set new records for weather.



Let’s stop to list some of the recent extreme weather events in Australia:

· Serious and long-lasting floods in Queensland around Rockhampton.

· Unprecedented flash flooding in Toowoomba and the Lockyer Valley.

· The biggest floods on record in western Victoria.

· A 100-year record flood in Brisbane.

· The warmest spring on record in Perth.

· Sydney has just had a record heatwave, including its hottest February night on record.

· South Australia and western Queensland had a severe heatwave in late January.

· And, of course, severe tropical Cyclone Yasi, the worst cyclone in living memory in northern Australia.

The impacts of these events spread beyond the obvious destruction of homes and lives that was widely reported in the media.

For example, the wet weather has brought plagues of mosquitoes, with a huge rise in mosquito-borne diseases like Ross River Fever and Barmah Forest Virus. Crops have been destroyed in many areas. Food prices are tipped to rise even higher.

Behind many of these phenomena is a record La Nina weather event, which the Bureau of Meteorology (BOM) says is the strongest since 1917.

BOM’s Darren Ray told the ABC on February 10: “There's an argument there that these record warmest ocean temperatures have at least contributed to increasing the intensity of both the flooding and the tropical cyclone activity that we're seeing in the last few months.”

Australia hasn’t been alone. The past year has seen big snowfalls in the US and Europe, severe drought in the Amazon, and severe flooding from South Africa and Sri Lanka, to the Philippines and Brazil (among others).

Despite the cold weather in Europe and North America, 2010 was the hottest year on record.

After observing a terrible event like cyclone Yasi it would be easy to conclude that climate change is real. But by that logic, a cold winter proves that climate change is not occurring.

There is a difference between weather and climate: individual weather events have a very complicated set of causes.

No measuring equipment is available that can separate all these causes to determine how much a single weather event was caused by climate change.

“Climate is the statistics of weather over the long term,” Ken Caldeira, a senior scientist at the Carnegie Institute for Science at Stanford University, told MSNBC’s LiveScience on February 2.

“No specific weather event can by itself confirm or disprove the body of scientific knowledge associated with climate change.”

If no single weather event can be directly attributed to climate change, does that make climate change a fiction? That would be as logical as taking literally the saying “tomorrow never comes”.

Warmer temperatures mean greater evaporation, and more water vapour carried in the air.

This can contribute to drier conditions over land, exacerbating droughts.

It also can increase the amount of rain or snow when that extra water vapour does finally precipitate, leading to greater floods and snowstorms.

And warmer ocean surface temperatures increase the intensity of cyclones.

The bunch of extreme events we have seen this year certainly fit the pattern of a warming climate: they are evidence that supports the case for global warming.

Climate scientists have forecast more unpredictable and extreme weather just as we are seeing. If climate deniers scream “there’s no proof!” they only prove their own ignorance.

The federal government has backed a levy to pay for rebuilding after the Queensland floods. While the federal opposition has been criticised for opposing the flood levy for its own selfish political ends, there is genuine opposition to a flood levy from other quarters.

Independent MP Rob Oakeshott has questioned whether defence budget cuts might instead help pay the bill.

He said on ABC’s Radio National on February 10: “Many people have put to me in emails for example, if we got one less JSF [Joint Strike Fighter] that's $110 million right there.”

The Federal government has instead cut climate change-related programs to pay for flood damages.

Melbourne group Yarra Climate Action Now said on January 30: “The Solar Energy Society has estimated that $495 million will be cut from solar energy programs…

“The irony here is inescapable. Ever-worsening and more frequent natural disasters are directly linked to human greenhouse gas emissions.

“Yet while the federal government continues subsidising fossil fuels — the cause of the problem — to the tune of billions of dollars per year, it cuts funding to the solutions — renewable energy and energy efficiency.”

Australian Greens Senator Christine Milne said on January 27: “It beggars belief that the government would choose to cut climate change programs like Solar Flagships, energy efficiency and the solar hot water rebate to fund disaster relief when such disasters will be made worse by climate change …

“We need to start planning now for the reality of climate change and redouble our efforts to return to a safe climate, not cut back on that effort.”

Ben Courtice
- Homepage: http://www.greenleft.org.au/node/46693

Comments

Display the following comment

  1. weather != climate — anon

Publish

Publish your news

Do you need help with publishing?

/regional publish include --> /regional search include -->

World Topics

Afghanistan
Analysis
Animal Liberation
Anti-Nuclear
Anti-militarism
Anti-racism
Bio-technology
Climate Chaos
Culture
Ecology
Education
Energy Crisis
Fracking
Free Spaces
Gender
Globalisation
Health
History
Indymedia
Iraq
Migration
Ocean Defence
Other Press
Palestine
Policing
Public sector cuts
Repression
Social Struggles
Technology
Terror War
Workers' Movements
Zapatista

Kollektives

Birmingham
Cambridge
Liverpool
London
Oxford
Sheffield
South Coast
Wales
World

Other UK IMCs
Bristol/South West
London
Northern Indymedia
Scotland

Server Appeal Radio Page Video Page Indymedia Cinema Offline Newsheet

secure Encrypted Page

You are viewing this page using an encrypted connection. If you bookmark this page or send its address in an email you might want to use the un-encrypted address of this page.

If you recieved a warning about an untrusted root certificate please install the CAcert root certificate, for more information see the security page.

IMCs


www.indymedia.org

Projects
print
radio
satellite tv
video

Africa

Europe
antwerpen
armenia
athens
austria
barcelona
belarus
belgium
belgrade
brussels
bulgaria
calabria
croatia
cyprus
emilia-romagna
estrecho / madiaq
galiza
germany
grenoble
hungary
ireland
istanbul
italy
la plana
liege
liguria
lille
linksunten
lombardia
madrid
malta
marseille
nantes
napoli
netherlands
northern england
nottingham imc
paris/île-de-france
patras
piemonte
poland
portugal
roma
romania
russia
sardegna
scotland
sverige
switzerland
torun
toscana
ukraine
united kingdom
valencia

Latin America
argentina
bolivia
chiapas
chile
chile sur
cmi brasil
cmi sucre
colombia
ecuador
mexico
peru
puerto rico
qollasuyu
rosario
santiago
tijuana
uruguay
valparaiso
venezuela

Oceania
aotearoa
brisbane
burma
darwin
jakarta
manila
melbourne
perth
qc
sydney

South Asia
india


United States
arizona
arkansas
asheville
atlanta
Austin
binghamton
boston
buffalo
chicago
cleveland
colorado
columbus
dc
hawaii
houston
hudson mohawk
kansas city
la
madison
maine
miami
michigan
milwaukee
minneapolis/st. paul
new hampshire
new jersey
new mexico
new orleans
north carolina
north texas
nyc
oklahoma
philadelphia
pittsburgh
portland
richmond
rochester
rogue valley
saint louis
san diego
san francisco
san francisco bay area
santa barbara
santa cruz, ca
sarasota
seattle
tampa bay
united states
urbana-champaign
vermont
western mass
worcester

West Asia
Armenia
Beirut
Israel
Palestine

Topics
biotech

Process
fbi/legal updates
mailing lists
process & imc docs
tech