Tag Archives: climate

Evidence global-scale warming during modern times is very typical, not unprecedented

“In the last 25 months, 265 peer-reviewed scientific papers have been published containing documented evidence (i.e., graphs primarily) that undermine the popularized conception of a slowly-cooling Earth followed by a dramatic hockey-stick-shaped recent uptick, or an especially unusual global-scale warming during modern times.” click here

Net surface energy imbalance estimates are very small compared with measurement uncertainty.

“The net energy balance is the sum of individual fluxes. The current uncertainty in this net surface energy balance is large, and amounts to approximately 17 Wm−2. This uncertainty is an order of magnitude larger than the changes to the net surface fluxes associated with increasing greenhouse gases in the atmosphere (Fig. 2b). The uncertainty is also approximately an order of magnitude larger than the current estimates of the net surface energy imbalance of 0.6 ±0.4 Wm−2inferred from the rise in OHC13,14. The uncertainty in the TOA net energy fluxes, although smaller, is also much larger than the imbalance inferred from OHC. The variations of these fluxes on interannual timescales12, however, closely follow variations in changes to OHC over time13,14,16.click here

Polar vortex is weather, not climate change

“Frankly, it is a stretch to make that link,” Kevin Trenberth, a climate scientist at the National Center for Atmospheric Research, told The Daily Caller News Foundation on Tuesday.

“There is always cold air over the Arctic in the polar night and the question is whether it sits there or breaks out,” Trenberth said. “So all this is in realm of weather. Not climate.” click here

Global cooling is much more deadly than global warming

“Yet, the recent weather is a stark reminder that a colder world is a much greater threat than a warmer one. While governments plan for warming, all the indications are that the world is cooling. And, contrary to the proclamations of climate activists, every single year more people die from the cold than from the heat.” click here

Data tampering generates warming winters

“Heidi Cullen’s Climate Central released this fraudulent map showing Midwest winters getting hot, which is based on tampered thermometer data.” click here

Early twentieth century warming is poorly understood

Gabriele C. Hegerl, Stefan Brönnimann, Andrew Schurer, Tim Cowan. The early 20th century warming: Anomalies, causes, and consequences. WIREs Clim Change. 2018;9:e522. wires.wiley.com/climatechange

The most pronounced warming in the historical global climate record prior to the recent warming occurred over the first half of the 20th century and is known as the Early Twentieth Century Warming (ETCW). Understanding this period and the subsequent slowdown of warming is key to disentangling the relationship between decadal variability and the response to human influences in the present and future climate. This review discusses the observed changes during the ETCW and hypotheses for the underlying causes and mechanisms. Attribution studies estimate that about a half (40–54%; p > .8) of the global warming from 1901 to 1950 was forced by a combination of increasing greenhouse gases and natural forcing, offset to some extent by aerosols. Natural variability also made a large contribution, particularly to regional anomalies like the Arctic warming in the 1920s and 1930s. The ETCW period also encompassed exceptional events, several of which are touched upon: Indian monsoon failures during the turn of the cen- tury, the “Dust Bowl” droughts and extreme heat waves in North America in the 1930s, the World War II period drought in Australia between 1937 and 1945; and the European droughts and heat waves of the late 1940s and early 1950s. Under- standing the mechanisms involved in these events, and their links to large scale forcing is an important test for our understanding of modern climate change and for predicting impacts of future change.

Washington Post reports fake news about the government shutdown and weather forecasts

“The Washington Post reported more than 10 days ago that weather forecasts were less reliable because of the ongoing government shutdown. Since then, however, evidence has mounted against that narrative.” click here