Arctic continues warming trend

Arctic tropospheric warming amplification?

Relative rates of temperature change between the troposphere and surface, and the mechanisms that produce these changes, have long been a contentious issue. Graversen et al., predicated upon the ERA-40 reanalysis, report polar tropospheric amplification of surface warming and attempt to explain this finding dynamically. Here we show (1) that data from satellites and weather balloons indicate th...

Upward Trend in Land Values Continues

During the early years of the 1981-87 decline in Indiana land values, there were reports of decreasing numbers of sales and increasing amounts of land for sale. This situation was reversed about 1987 and continues today as indicated by a majority of Purdue land values survey respondents who believe there is less land on the market now than a year ago and that sales have picked up. The same or l...

Amplified Arctic warming by phytoplankton under greenhouse warming.

Phytoplankton have attracted increasing attention in climate science due to their impacts on climate systems. A new generation of climate models can now provide estimates of future climate change, considering the biological feedbacks through the development of the coupled physical-ecosystem model. Here we present the geophysical impact of phytoplankton, which is often overlooked in future clima...

Recent warming reverses long-term arctic cooling.

The temperature history of the first millennium C.E. is sparsely documented, especially in the Arctic. We present a synthesis of decadally resolved proxy temperature records from poleward of 60 degrees N covering the past 2000 years, which indicates that a pervasive cooling in progress 2000 years ago continued through the Middle Ages and into the Little Ice Age. A 2000-year transient climate si...

Warming Trend: How Climate Shapes Vibrio Ecology