There is, however,
substantial variability in the strength of sibling relations within families, with some individuals receiving greater potential benefits from this tie than do their brothers and sisters.
Additional escalation of the mining impact occurs as conventional oil mining is supplanted by tar sands development, with mining and land disturbance from the latter producing land use - related greenhouse gas emissions as much as 23 times greater than conventional oil production per unit area [152], but
with substantial variability and uncertainty [152]--[153].
They have also found that there is
substantial variability within the monsoon season, including fluctuations between periods of heavy rainfall (wet spells) and low rainfall (dry spells).
The other reconstructions
show substantial variability, but all show an increase since 1700 and most of the NH reconstructions show an increase since 1600.
The accumulated evidence
exhibits substantial variability across disciplines and individuals, and in the relative contributions of scientists at different stages of their career and with different chronologic and academic age [3]--[8].
The draft notes that despite the relentless build - up of greenhouse gases in the atmosphere, the rate of warming over the past 15 years has been small compared with warming between 1951 and 2012, suggesting that within an overall warming that began in the first decade of the 1900s, the climate system still
displays substantial variability on time scales of a decade or so.
Motivational Interviewing is an effective treatment for a range of problematic behaviours, however, previous studies have
revealed substantial variability in the effectiveness of therapists.
Additional escalation of the mining impact occurs as conventional oil mining is supplanted by tar sands development, with mining and land disturbance from the latter producing land use - related greenhouse gas emissions as much as 23 times greater than conventional oil production per unit area [152], but
with substantial variability and uncertainty [152]--[153].
There is
substantial variability within the monsoon season, including fluctuations between periods of heavy rainfall (wet spells) and low rainfall (dry spells).
None of the commonly used medications are FDA approved for treating NAS and there is
substantial variability in how these infants are treated.
Substantial variability is seen on timescales of 30 years.
The study by Ponte (2012) is referenced for its use of an eddy - resolving ocean state estimate to quantify
the substantial variability in temperature and salinity expected in the deep ocean on time scales from months to years.
Klotzbach (2006) considers ACE values only from 1986 and his record is not long enough to provide reliable trends, given
the substantial variability.