Weather records tumble: our future is at stake

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 pause 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.”

Comments

Its climate change and was predicted by the scientists that people laughed at usually.

Continued support of unstoppable warming from Climate Change is dividing environmental efforts and impairing progressive social reforms. Meanwhile, the UN had allowed carbon trading to trump 3rd world fresh water relief, starvation rescue and 3rd world education for just over 25 years of climate control instead of needed population control. Obama blew off climate change in his Feb. speech and so do any of you see these thousands of consensus scientists marching in protest then? This IS after all the biggest emergency ever, unstoppable warming, not bad weather. Why are the scientists not leading this insanity, instead of the politicians promising to lower the seas with taxes? Scientists should be on every news cast and every front page and on every talk radio show. We have been had. This was our Iraq War of climate WMD’s.

This needless CO2 battle is all but lost and the "majority" former believers are leading environMENTALism away from the CO2 mistake and continuing stewardship anew with courage, not mindless fear of the unknown. Climate Change is 25 years old, voter support is gone, the neocons are cutting IPCC funding and you faded doomers are not helping anyone now.
Let's be honest. We were issuing CO2 death threats like goose stepping Greenzis to our very own children just to get them to turn the lights out more often.
We can't do this anymore. History is watching us act like omen worshipers and witch burners. System Change, not climate change.

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