jennifermarohasy.com/blog - The Politics and Environment Blog

Main menu:

 

July 2009
M T W T F S S
« Jun   Aug »
 12345
6789101112
13141516171819
20212223242526
2728293031  

Tags

Archives

Authors

Site search

Miniposts 0.6.5

Methane Leak
Scientists have discovered the Arctic ocean seabed is leaking huge amounts of methane into the atmosphere.  The research published in the journal Science shows the permafrost under the East Siberian Arctic shelf, which was thought to be a barrier sealing methane, is perforated.  Read more here. (1)

NYT: Pachauri Faces Credibility Siege
The New York Times is reporting that: Dr. Pachauri and the Intergovernmental Panel on Climate Change are now under intense scrutiny, facing accusations of scientific sloppiness and potential financial conflicts of interest from climate skeptics, right-leaning politicians and even some mainstream scientists.  More here. (1)

Phil Jones Guilty, But
The university at the centre of the climate change row over stolen e-mails broke the law by refusing to hand over its raw data for public scrutiny.  B ut…  Read more here. (0)

Banks Leave Carbon Market
Banks and investors are pulling out of the carbon market after the failure to make progress at Copenhagen on reaching new emissions targets after 2012.  Read more here. (0)

UK Met Office Can't Forecast Weather
The UK Met Office is debating what to do with its long-term and seasonal forecasting after criticism for failing to predict extreme weather.   It was predicted that this winter would be warmer than average – yet it has been unusually cold.  Read more here. (2)

Advertisement

Links

Disclaimer: The inclusion of a blog or website in this list should not be taken as an endorsement of its contents by me.

Shrinking Sheep

CLIMATE change has caused a flock of wild sheep on a remote northern Scottish island to become smaller, according to an unusual investigation published on Thursday.  Read more here.

Advertisement

7 Responses to “Shrinking Sheep”

  1. Comment from: Helen Mahar


    Unusual all right. Talk about jumping to the concluions you are looking for!

    Lots of environmental factors can lead to smaller sheep.
    1. Lack of feed for pregnant ewes = smaller lambs born
    2, Lack of supplementary feed for lambs = smaller lambs. They start nibling grass almost as soon and they are born.
    3 Lambs born into poor feed (eg droughts) often fail to reach their potential size.
    4 The ewes from these lambs, being smaller, also have smaller lambs. Takes two generations of good feed conditions to recover from this set back. eg note the increasing size of humans over the last 100 yeas in developed countries.
    5 Feed shortages can be caused by weather (been warming lately, grass should be better) or introduced pests. To claim that observed weight reductions of 85g/generation is natural evolution is stunning. Makes sheep breeders look a bit slack.

    Also, sheep have a natural cycle, timed to drop lambs in late spring, when feed conditions are best. In warm climates like Australia, sheep, especially merinos, can cycle all year round, but even these still get the best drop with spring lambing. A slightly warmer climate could result in a few of-season lambs in this study. Believe it’s been cooling lately up there…

    This sort of “science” creates doubt and scepticism in those who have information or experience against which to measure the claims.

    When looking for explanations of observations, always spin more than one hypothesis.

  2. Comment from: Helen Mahar


    Correction –
    5 been cooling lately – grass should be poorer.

    If it had been warming, as AGW theory proposes, then better feed conditions should have produced more robust sheep. Need to look for other expanations – or take another look at the data.

  3. Comment from: SJT


    Helen, do you think they are idiots who don’t consider all the factors you are talking about too?

    ““But now, due to climate change, grass for food is available for more months of the year and survival conditions are not so challenging – even the slower-growing sheep have a chance of making it, and this means smaller individuals are becoming increasingly prevalent in the population.””

    They were looking at all the factors you mentioned, and they didn’t add up. It was only when they considered climate change that it made sense. And they are talking about long term trends, not the year by year wiggles.

  4. Comment from: Helen Mahar


    SJT, this so convenently unusua “result” is worthy of including in the following:

    http://www.numberwatch.co.uk/warmlist.htm

  5. Comment from: Helen Mahar


    SJT, this so conveniently unusual “result” is worthy of including in the following:

    http://www.numberwatch.co.uk/warmlist.htm

    Good for more funding, no doubt.

  6. Comment from: spangled drongo


    There is no mention of measured data to prove that their habitat was actually warmer.
    Maybe they are just going by the hockey stick thermometer or British weather forcasts or maybe they used a computer program.
    There is absolutely nothing happening in weather or climate to indicate a pattern of GW [other than normal variability] let alone enough to create an evolutionary change in an animal.
    But maybe it’s the same pattern that’s increasing polar bear numbers.
    Increasing numbers = younger average age = smaller average size.

  7. Comment from: SJT


    “Good for more funding, no doubt.”

    Usual line of insult. They were doing the research regardless of AGW, and had not been expecting any AGW affects on their area of study.

    The appeal to emotion on numberwatch is no sort of argument either. He appears to not understand that a global phenomenon will affect all areas of the globe. This is just one more area of the globe. It’s a big place. There will be a lot more stories to add to his list over the coming years.

Leave a Reply