Archive for the ‘Weather deterioration’ Category

‘Worse to come’ bushfire warning

Sunday, February 21st, 2010

Jan 6, 2010

CANBERRA – As firefighters continued to battle huge fronts in Western Australia and Tasmania yesterday, confirmation came that worse lies ahead as the nation is heated further by global warming.

The Bureau of Meteorology said Australia had been getting hotter every decade for the past 70 years and the trend was expected to continue.

Its latest climate statement said the past 10 years were the hottest decade since records began.

Last year – Australia’s second-hottest – produced record-breaking heatwaves that saw temperatures soar to 46.4C in Melbourne and forced Adelaide to endure eight consecutive days above 35C.

The Bureau of Meteorology’s annual climate statement said the mean temperature for the past 10 years had climbed 0.48C above the 1961-1990 average, climbing further last year to 0.9C above the average.

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2009: Second Warmest Year on Record; End of Warmest Decade

Saturday, January 23rd, 2010

Very little doubt, except among the denialists and those who don’t understand science, that we are seriously losing ground with the climate.

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Jan. 21, 2010

2009 was tied for the second warmest year in the modern record, a new NASA analysis of global surface temperature shows. The analysis, conducted by the Goddard Institute for Space Studies (GISS) in New York City, also shows that in the Southern Hemisphere, 2009 was the warmest year since modern records began in 1880.

Although 2008 was the coolest year of the decade, due to strong cooling of the tropical Pacific Ocean, 2009 saw a return to near-record global temperatures. The past year was only a fraction of a degree cooler than 2005, the warmest year on record, and tied with a cluster of other years — 1998, 2002, 2003, 2006 and 2007 1998 and 2007 — as the second warmest year since recordkeeping began.

“There’s always an interest in the annual temperature numbers and on a given year’s ranking, but usually that misses the point,” said James Hansen, the director of GISS. “There’s substantial year-to-year variability of global temperature caused by the tropical El Niño-La Niña cycle. But when we average temperature over five or ten years to minimize that variability, we find that global warming is continuing unabated.”

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- Research thanks to John K.

Got Gas?

Sunday, October 18th, 2009

- A good friend of mine sent me this article saying, “Interesting article on natural gas“.

- It is, indeed, an interesting article but I saw it in a different light than many perhaps do.

- My response to my friend:

D,

An interesting and potentially game-changing story, indeed.

But, it is a classic case of humanity’s inborn tendency to jump at the short term relief without fairly balancing it against the long-term consequences.

To see the consequences, I’d like to see someone make the assumption that ALL the fossil fuel we burn from here forward is this cleaner gas.   And, to be really fair, we can drop all considerations of the collateral damages associated with obtaining the gas that were mentioned in the article.

Just assume that the world will continue growing and producing and have more babies and all the rest of it for the next 20 to 50 years – all largely fueled by this gas.

The analysis should show what will happen to the CO2 levels in the atmosphere from consuming just this gas.  And then it should consider the consequences of this change in CO2 levels on global weather, ecosystems, environmental refugees, depleted glaciers and winter snow packs, increasing desertification, species die-offs and an entire host of follow-on consequences that will attend continued rising of global CO2 levels.

Short-term thinkers are enthusiastic about these new gas producing technologies because they allow us, for the moment, to avoid having to deal with the really tough long term questions regarding what we have to do to get into a sustainable long-term homeostatic balance with the planet’s ecosphere.

Long term, it’s really the only question that matters much.

Everything else is an avoidance or a denial that only take us further down the road wherein we do not solve this problem and cause a major crater in the Earth’s evolutionary history; killing many species, altering the weather for tens of thousands of years and killing the majority of the human beings alive and reducing the ones that survive to miserable circumstances.

Not an insignificant outcome – and all the more terrible because, difficult as it may be, we could avoid most of it if we had the grit and the will to do so.

Dennis

Australians sweat out warmest winter

Thursday, August 27th, 2009

SYDNEY – Australia is in the throes of probably its warmest winter ever, with records smashed up and down the country.

Lying awake at night in pools of sweat, Australians have been wondering which hemisphere they live in.

Now the Bureau of Meteorology has confirmed that this is set to be the hottest August on record, by a big margin – and, if forecasts for the next few days are correct, the hottest winter.

The bureau, which spends much of its time dampening speculation that weather patterns have changed, issued a “special climate statement” describing the heatwave as “highly abnormal”.

It blamed hot air accumulating over central Australia during the past two or three weeks, without southerly fronts arriving to blow it away, as would usually be expected.

Nearly a dozen towns have broken winter records by more than four or five degrees, while some coastal areas of northern New South Wales and southern Queensland experienced their warmest day of 2009 in August, surpassing the midsummer temperatures of January and February.

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Another one bites the dust, literally: Bolivia’s 18,000 year-old Chacaltaya glacier is gone

Saturday, May 9th, 2009

Like the Wicked Witch of the West, the world is melting — and fast.

The University of Zurich’s World Glacier Monitoring Service reported earlier this year, “The new data continues the global trend in accelerated ice loss over the past few decades.” The rate of ice loss is twice as fast as a decade ago.  “The main thing that we can do to stop this is reduce greenhouse gases” said Michael Zemp, a researcher at the University of Zurich’s Department of Geography.

This is all sadly consistent with other recent research (see Another climate impact comes faster than predicted: Himalayan glaciers “decapitated” and AGU 2008: Two trillion tons of land ice lost since 2003 and links below).

And this country isn’t being spared — see “Another climate impact coming faster than predicted: Glacier National Park to go glacier-free a decade early.”

But the story of the week, from the Miami Herald, is Chacaltaya, which means ”cold road” — and like our Glacier National Park, it is gonna need a new name [maybe "not-so-cold cul-de-sac"]:

If anyone needs a reminder of the on-the-ground impacts of global climate change, come to the Andes mountains in Bolivia. At 17,388 feet above sea level, Chacaltaya, an 18,000 year-old glacier that delighted thousands of visitors for decades, is gone, completely melted away as of some sad, undetermined moment early this year….

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‘Safe’ climate means ‘no to coal’

Saturday, May 2nd, 2009

About three-quarters of the world’s fossil fuel reserves must be left unused if society is to avoid dangerous climate change, scientists warn.

More than 100 nations support the goal of keeping temperature rise below 2C.

But the scientists say that without major curbs on fossil fuel use, 2C will probably be reached by 2050.

Writing in Nature, they say politicians should focus on limiting humanity’s total output of CO2 rather than setting a “safe” level for annual emissions.

The UN climate process focuses on stabilising annual emissions at a level that would avoid major climate impacts.

But this group of scientists says that the cumulative total provides a better measure of the likely temperature rise, and may present an easier target for policymakers.

“To avoid dangerous climate change, we will have to limit the total amount of carbon we inject into the atmosphere, not just the emission rate in any given year,” said Myles Allen from the physics department at Oxford University.

“Climate policy needs an exit strategy; as well as reducing carbon emissions now, we need a plan for phasing out net emissions entirely.”

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An introduction to global warming impacts: Hell and High Water

Tuesday, April 21st, 2009

- This is a great place to start if you want to get the big overview of Global Climate Change and its consequences.   And recall that this, as big as it is, is only a part of the bigger picture that I’ve been calling The Perfect Storm.

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In this post, I will examine the key impacts we face by 2100 if we stay anywhere near our current emissions path. I will focus primarily on:

  • Staggeringly high temperature rise, especially over land — some 15°F over much of the United States
  • Sea level rise of 5 feet, rising some 6 to 12 inches (or more) each decade thereafter
  • Dust Bowls over the U.S. SW and many other heavily populated regions around the globe
  • Massive species loss on land and sea — 50% or more of all life
  • Unexpected impacts — the fearsome “unknown unknowns”
  • More severe hurricanes — especially in the Gulf

Equally tragic, as a 2009 NOAA-led study found, these impacts be “largely irreversible for 1000 years.”

More… :arrow: <== Please continue, this is well worth a good read!

Climate Tipping Point Near Warn UN, World Bank

Tuesday, April 14th, 2009

WASHINGTON, DC, February 23, 2009 (ENS) – The planet is quickly approaching the tipping point for abrupt climate changes, perhaps within a few years, according to the UN Environmental Programme’s newly released 2009 Year Book and a separate World Bank report now being presented throughout Latin America.The UN agency warns that urgent action is needed to avoid catastrophic climate events such as major food and water shortages, shifts in weather patterns, and destabilization of “major ice sheets that could introduce unanticipated rates of sea level rise within the 21st century.”

The report warns that climate changes are occurring much faster than anticipated by the latest Intergovernmental Panel on Climate Change report, issued in 2007.

While earlier estimates forecast up to half a meter (19.5 inches) rise in sea level in the coming century, updated calculations suggest that the rise may be as high as two meters (78 inches).

Melting ice sheets and glaciers in the northern and southern hemispheres will not only contribute to sea level rise, but will also leave many regions around the world without basic water resources for human consumption and industrial production.

In its new report, the World Bank focuses on four climate impacts of special concern: “the warming and eventual disabling of mountain ecosystems in the Andes; the bleaching of coral reefs leading to an anticipated total collapse of the coral biome in the Caribbean basin; the damage to vast stretches of wetlands and associated coastal systems in the Gulf of Mexico; and the risk of forest dieback in the Amazon basin.”

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Climate Change Effects In California

Monday, April 13th, 2009

A biennial report released April 1 by a team of experts that advises California’s governor suggests that climate changes are poised to affect virtually every sector of the state’s economy and most of its ecosystems. Significant impacts will likely occur under even moderate scenarios of global greenhouse emissions and associated climate change, but without action, severe and costly climate change impacts are possible across the state.

The state Climate Action Team (CAT) report uses updated, comprehensive scientific research to outline environmental and economic climate impacts. Its authors include Dan Cayan, a climate scientist at Scripps Institution of Oceanography, UC San Diego, and a member of the CAT steering team.

A broad collaboration of scientists, mostly from state academic and government agencies, provided a large set of technical papers that form the underpinnings for much of the CAT report. Assessments include the impacts of sea level rise, higher temperatures, increased wildfires, decreased water supplies, increased energy demand, among others, on the state’s environment, industries and economic prosperity. Each of the papers has undergone peer review by technical experts in private, public and governmental entities.

Impacts of climate change to California’s coast, agriculture, forest and communities have been known and studied for years; however the studies that support the CAT report suggest that actual greenhouse gas emissions are outstripping 2006 projections. Of particular interest are the several papers focusing on the impacts of a rise in sea levels to coastal communities and increased potential of wildfires to residential areas.

“The Climate Action Team plays an essential role in the implementation of the state’s climate initiatives and is guided by these important technical studies to ensure policy decisions are based on sound science,” said Linda Adams, Secretary for Environmental Protection and Chair of the state’s CAT. “Any delay in fighting global warming would be detrimental to our economic stability – costing us billions of dollars and dampening the state’s most important economic sectors. Taking immediate action on climate change is essential to slow the projected rate of warming. We also need to make smarter decisions in order to anticipate and adapt to the changes.”

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 - Note, the red highlighting is mine.

More Australian Weather Records Tumble

Wednesday, April 8th, 2009

The Big Dry Down Under just got a whole lot drier. The first three months of 2009 in the already parched Murray Darling basin had the least amount of rainfall since Australian weather records began 117 years ago.

This massive drainage supports $9 billion in agriculture but has been hammered by what some are calling the worst drought in 1000 years. Authorities in Australia make no bones about the cause of this freaky weather.

“We’ve had big droughts before and big floods before, but what we didn’t have was climate change,” said Rob Freeman, the chief executive of the Murray-Darling Basin Authority.

The Murray Darling is home to 2 million people who may not even have enough water to survive in the future. “I’d be loath to say that critical human needs will always be secure”, warned Freeman.

The recent rainfall record was not the only smashed. Water inputs for three-year period ending March 2009 were less than half of the previous record from the great drought of 1943-1946.

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