by A. Stewart, April 23, 2018 in ClimateChangeDispatch
Could someone explain in 100 words or less without complex algebraic formulas how the trace gases, approximately 1% of the atmosphere can overtly control the temperatures of the remaining 99% atmospheric constituents?
by K. Richard, April 19, 2018 in NoTricksZone
The Arctic region was the largest contributor to the positive slope in global temperatures in recent decades.
Consequently, the anomalously rapid warming in the Arctic region (that occurred prior to 2005) has been weighted more heavily in recent adjustments to instrumental temperature data (Cowtan and Way, 2013; Karl et al., 2015) so as to erase the 1998-2015 hiatus and instead produce a warming trend.
Meanwhile, other scientists have been busy determining that only about 50% of the warming and sea ice losses for the Arctic region are anthropogenic, or connected to the rise in CO2 concentrations.
The rest of the warming and ice declines can be attributed to unforced natural variability.
by P. Gosselin, April 6, 2018 in NoTricksZone
The addition of an esteemed Norwegian climate scientist to the London-based GWPF will help bring some sobriety back to a science that has all too often been immersed in alarmism.
The London-based Global Warming Policy Foundation (GWPF) recently announced Professor Ole Humlum of Norway was joining its Academic Advisory Council.
This brings another persuasive voice to the influential think tank.
by P. Homewood, April 7, 2018 in NotaLotofPeopleKnowThat
Nick Dekker raised the question of CO2 emissions per capita.
The latest official figures come from the now defunct CDIAC, and are for 2014
by Bjorn Lomborg, April 2, 2018 in ClimateChangeDispatsch
CCD Editor’s Note: In 1920, CO2 levels were 303 PPM or 0.03%. Last year they were 406 PPM or 0.04%. Despite our global population quadrupling, climate deaths have actually gone down as CO2 levels have gone up. Lomborg explains why with the now-standard, often-by-rote “this does not mean that there is no global warming” caveat.
by Eric Worrall, April 1, 2018 in WUWT
Huffington Post has noticed that many university academics are utter climate hypocrites, that many of them rate their personal importance by how many professional air miles they can accumulate every year (…)
by Cell Press, March 29, 2018 in ScienceDaily
The thousands of metric tons of carbon dioxide (CO2) emitted from power plants each year doesn’t have to go into the atmosphere. Researchers are optimistic that within the next decade we will be able to affordably capture CO2 waste and convert it into useful molecules for feedstock, biofuels, pharmaceuticals, or renewable fuels. On March 29 in the journal Joule, a team of Canadian and US scientists describe their vision for what we should make with CO2 and how we can make it.
by Nic Lewis, March 29, 2018 in ClimateAudit (Steve McIntyre)
The two strongest potentially credible constraints, and conclusions
In Part 1 of this article the nature and validity of emergent constraints on equilibrium climate sensitivity (ECS) in GCMs were discussed, drawing mainly on the analysis and assessment of 19 such constraints in Caldwell et al. (2018), who concluded that only four of them were credible. An extract of the rows of Table 1 of Part 1 detailing those four emergent constraints is given below.
by J. Cartwright, March 16, 2018 in A. Watts WUWT
WUWT readers may recall this chart which clearly illustrates just how uncertain climate science really is.
by Larry Hamlin, March 14, 2018 in WUWT
In June 23, 1988 the Senate Committee on Energy and Natural Resources held a hearing addressing the Greenhouse Effect and Global Climate Change.
Among the presenters at this hearing was Dr. James Hansen, Director, NASA Goddard Institute for Space Studies who introduced his infamous and now debunked global surface temperature model results with future temperature projections under three different scenarios of CO2 emissions growth that grossly over exaggerated resulting projected global temperature increases.
by P. Hockenos, November 13, 2017 in FPNews
Yet Germany’s image as selfless defender of the climate, which was once largely deserved, is now a transparent fiction. Germany has fallen badly behind on its pledges to sink its own greenhouse gas pollutants. In fact, Germany’s carbon emissions haven’t declined for nearly a decade and the German Environment Agency calculated that Germany emitted 906 million tons of CO2 in 2016 — the highest in Europe — compared to 902 million in 2015. And 2017’s interim numbers suggest emissions are going to tick up again this year.
by D. Middleton, March 8, 2018 in WUWT
Not quite a year ago (April 18, 2017) I authored a post on the completion of the Petra Nova carbon capture project at the W. A. Parrish coal-fired power plant in Fort Bend County, Texas. Petra Nova was billed as “the largest post-combustion carbon capture project in the world.” In addition to capturing CO2 from a very large coal-fired power plant, Petra Nova was also designed to serve a useful purpose: Deliver CO2 for enhanced oil recovery to West Ranch Oil Field in Jackson County, Texas. The ultimate goal is to boost production in the field from around 500 barrels of oil per day (BOPD) to 15,000 BOPD and recover about 60 million barrels that would otherwise have been left in the ground.
EIA had an update on the carbon capture aspect back in October…
by Tony Heller, March 8, 2018 in TheDeplorableClimateScience
Antarctic ice cores show regular swings in temperature of more than 20 degrees. These were all natural, but the recent zero degree swing was caused by your SUV (…)
See also The Biggest Control Knob: CO2 in Earth’s Climate History
by University of Birmingham, March 2, 2018, in WUWT
As the Earth’s surface and atmosphere warm, the amount of moisture – water vapour – in the atmosphere will increase. Understanding the size of this increase is important for predicting future climates as water vapour is a significant greenhouse gas. Atmospheric moisture content also influences the patterns and intensity of rainfall events.
The relationship between temperature and moisture content can be explored by the study of intervals in Earth’s history when climates where significantly warmer than those seen in modern times, which necessitates a method for estimating ancient atmospheric moisture content.
by E. Krukowska and R. Morison, February 26, 2018 in Bloomberg
European Union nations are poised to endorse the biggest overhaul of the market they created more than a decade ago to rein in pollution, a move that may lift prices of power generated from fossil fuels.
The measures, due for final approval in Brussels on Tuesday, impose tougher requirements on thousands of companies to reduce greenhouse gases or pay higher costs for their carbon dioxide emissions. They’re part of a plan to clear up a flaw in the market that left the cost of CO2 permits well below the level needed to stir investments in green energy.