Variations in climate from year to year and decade to decade play a greater role in the Texan climate than any long-term trends. Short-term variability will continue to dominate the climate in future. The Texas climate shows no statically significant long-term trend in mean annual temperature, rainfall, floods, droughts, heatwaves, tornadoes, or hurricanes – still less any trend… Read More »
Abstract Alarming statements from the UN Intergovernmental Panel on Climate Change (IPCC) concerning global warming are being challenged by a considerable number of scientists from different disciplines with a variety of arguments. The disputes comprise the collection and interpretation of data, the validation of hypotheses and climate models, the use of those models for scientific decision making, and… Read More »
A climatic reconstruction published in E&E (Loehle, 2007) is here corrected for various errors and data issues, with little change in the results. Standard errors and 95% confidence intervals are added. The Medieval Warming Period (MWP) was significantly warmer than the bimillennial average during most of the period 820 – 1040 AD. The Little Ice Age was significantly… Read More »
A review of the research literature concerning the environmental consequences of increased levels of atmospheric carbon dioxide leads to the conclusion that increases during the 20th and early 21st centuries have produced no deleterious effects upon Earth’s weather and climate. Increased carbon dioxide has, however, markedly increased plant growth. Predictions of harmful climatic effects due to future increases… Read More »
Michael Kaufman, a Post staff writer, describes new research results by Eric Rignot and colleagues that “Climatic changes appear to be destabilizing vast ice sheets of western Antarctica that had previously seemed relatively protected from global warming…raising the prospect of faster sea-level rise than current estimates.”
This paper documents various unresolved issues in using surface temperature trends as a metric for assessing global and regional climate change. A series of examples ranging from errors caused by temperature measurements at a monitoring station to the undocumented biases in the regionally and globally averaged time series are provided….
This study assesses near surface lapse rates and temperatures over the past decade at two heights from the Oklahoma Mesonet. A statistically significant change in lapse rate was detected of _0.21 ± 0.09_C (10 m)_1 per decade. The trend of nighttime lapse rate was about three times larger than the magnitude of trend of the daytime lapse rate.… Read More »