But factors such as deep manufacturing recession have been blamed for the relative weakness of the Scottish economy.

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And there are many factors fuelling it, such as economic hardship and deep-seated feelings of social injustice.

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What has been holding down crude for the past two quarters has been a combination of factors: First, negative news from Europe put the deep threat of recession contagion throughout global markets.

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Two of the factors, lack of health insurance and childhood poverty, have been exacerbated by the deep recession.

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Nuchereno believes Ortiz's confession was prompted by several factors, including his mental illness, his inability to understand English well and a deep-seated fear for his own life.

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But this is an emerging and highly complex area of science because of the interplay of natural factors and manmade greenhouse gases at a time when a key set of temperatures - in the deep ocean - is still relatively unknown.

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