The phrase
"cooler conditions" means that the temperature is lower or the weather is colder than before.
Full definition
As the ice sheets waxed and waned, global climate drifted steadily
toward cooler conditions characterized by increasingly severe glaciations and increasingly cool interglacial phases.
Patterson, sharing Tapping's concern, says: «Solar scientists predict that, by 2020, the sun will be starting into its weakest Schwabe cycle of the past two centuries, likely leading to unusually
cool conditions on Earth.»
And that therefore the slightly higher trend that you all report (as compared with other efforts) comes about
from cooler conditions in the pre-satellite era than has been previously determined from the direct observations?
«The evidence currently available indicates that NH mean temperatures during medieval times (950-1100) were indeed warm in a 2 - kyr context and even warmer in relation to the less sparse but still limited evidence of widespread
average cool conditions in the 17th century (Osborn and Briffa, 2006).
Overall, the Outlook yields mixed signals, with the potential for substantial sea ice loss due to what appears to be a record - low in multiyear sea ice extent compared to the extent of first year sea ice, tempered
by cooler conditions less favorable to a massive ice loss than in the past two years.
It is possible, he adds, that these persistent high - pressure zones may be produced by two well - known oceanographic patterns: La Nina and El Nino in the Pacific Ocean (which mark alterations in warmer and
cooler conditions between that ocean's eastern and western equatorial waters) and the North Atlantic Oscillation (which results from weather patterns between Iceland and the Azores).
While the relatively
cool conditions at many European sites have helped preserve the DNA of ancient skeletons, researchers had not succeeded in sequencing DNA from the many skeletons found at very early Middle Eastern sites, due to their very hot and dry environments.
Spring and summer This late winter emergence of the El Niño means that the hallmark U.S. impacts — wet and
cool conditions across the southern U.S. — won't happen.
Over the last 30 years of direct satellite observation of the Earth's climate, many natural influences including orbital variations, solar and volcanic activity, and oceanic conditions like El Nino (ENSO) and the Pacific Decadal Oscillation (PDO) have either had no effect or
promoted cooling conditions.
Pollen records in northern Europe reveal rather
consistently cool conditions, and smoothed mean temperature curves show a cumulative drop during this period.
Scientists hope that ecosystems possess «temporary resilience» during the overshoot period so that they can bounce back
when cooler conditions return.
The additional variability
implies cooler conditions, predominantly during the 12th to 14th, the 17th and the 19th centuries; these are likely linked to natural forcings due to volcanic eruptions and / or solar activity.
Their reconstruction «shows a succession of warm and cold episodes including peak warmth during Roman and Medieval times alternating with
severe cool conditions centred in the fourth and fourteenth centuries.»
In summary, all sub-regions of the Arctic appear to have been characterized by sluggish ice melt and retreat, due in part to above average cloudiness and atmospheric circulation
favoring cooler conditions (see pan-arctic outlook summary discussion).
At Barrow, an interesting balance between a relatively early onset of melt in April (and subsequent high ice temperatures) and
overall cooler conditions with much less solar heating than normal is playing out, as discussed by Eicken et al..
Similarly, increased carbon dioxide in the stratosphere has led to
gradual cooling conditions, which affects the UV influence on the stratospheric circulation.
Malbec can be very susceptible to poor fruit set if there is any moisture or
cool conditions during bloom, thus making its yield spotty in some years.
Jennifer Schweitzer, an associate professor at the University of Tennessee, Knoxville, and co-author of the paper, said forest managers and conservationists may consider accounting for a tree's microscopic soil creatures in the future, as they could determine how quickly species march
toward cooler conditions.