A comparison of sea-surface temperatures in the Western Pacific with paleoclimate data from microscopic sea-surface animals suggested that this ocean region was approximately as warm as it had been at any time in the past 12,000 years and within about 1 °C of the maximum temperature of the past million years.
The study finds that the sun is unlikely to have caused more than 0.15°C of the observed approximately 1°C warming over the past 300 years.
Core-top summer SSTs from planktonic foraminiferal assemblages represent observed August SSTs, whereas winter SSTs are approximately 3.6 °C warmer than observed February SSTs.
Because the core-top and 3 ky average February temperatures of core DGKS9603 were approximately 3 °C warmer than the present February SST, this core was excluded from the comparison.
The optimal provenance for any given location was not local, but rather located in environments that were approximately 1.5 °C warmer than the planting site; this shift is consistent in both direction and magnitude with that expected due to climate warming since the start of the industrial revolution.
These paleotemperatures appear to be approximately 1 °C warmer than current annual mean SSTs (25.0 and 25.6 °C, respectively), but given the margin of error of alkenone-based temperatures (±1.6 °C) (Rosell-Melé et al. 2001), they do in fact represent the annual mean SSTs.
Liver tissue is known to be approximately 1-2°C 1-2°Cr than the body core temperature [ 23].
Figure 1 a reveals two increases in North Sea SST, the first around 1989 followed by a second, sustained warming after approximately 1997 leading to warmer SST throughout the year.
Comparisons of different periods of the two forcing pathways suggest that the magnitude of aggregate climate change varies relatively linearly with the magnitude of global warming below approximately 2 °C of global warming (relative to the late-20th-century baseline).
Comparisons of different periods of the two forcing pathways suggest that the pattern of aggregate change is fairly robust to the level of global warming below approximately 2 °C of global warming (relative to the late-20th-century baseline), but not at the higher levels of global warming that occur in the late-21st-century period of the RCP8.5 pathway (Fig. 1).
At the highest 90Y activity scan, cold insert counts was approximately 33% of warm background, much closer to that of 18F.
