by DMI (Danish Meterological Institute), July 2017
The graphic shows the mean September sea ice extent on the northern hemisphere. The plotted values correspond approximately to the sea ice area that ‘survived’ the summer melt in the respective years
The graph illustrates a decreasing trend in sea ice extent since 1978, with annual variations of occationally more than 1 million square kilometres. The 2012 sea ice minimum extented set a new minimum record.
See also here
by Javier, July 11, 2017 in ClimatEtc.
In our attempt to better understand the nature of our planet’s abrupt climate changes I have already reviewed the glacial-interglacial cycle, and the Dansgaard-Oeschger cycle’s that take place during glacial periods. I now start reviewing the millennial climate cycles that abruptly impact the slowly changing Holocene climate. The most significant and regular one is the ~ 2400-year Bray cycle.
by Larry Kummer, July 15, 2017 in WUWT
After 30 years of failure to gain support of the US public for massive public policy measures to fight climate change, climate activists now double down on the tactics that have failed them for so long. This post explains why it will not work. Nor should it. Instead they should trust the IPCC and science, showing both the good and bad news.
by David Whitehouse, June 22, 2017 in Financial Post
Few things illustrate the poor state of the communication of climate science better than the reaction to Environmental Protection Agency Administrator Scott Pruitt’s comments about global temperatures in the past 20 years. It was made in written comments to the Senate following his confirmation hearing. He wrote, “over the past two decades satellite data indicates there has been a leveling off of warming.” Has the temperature increase of the Earth’s surface and lower atmosphere “stalled” in the past 20 years or so? Does this change our view of climate change?
by Dr. Susan J. Crockford, July 14, 2017 in ClimateChangeDispatch
Yes, Arctic sea ice has declined since satellite records began in 1979 but polar bears have adjusted well to this change, especially to the abrupt decline to low summer sea ice levels that have been the norm since 2007. Some polar bear subpopulations have indeed spent more time on land in summer than in previous decades but this had little negative impact on health or survival and while polar bear attacks on humans appear to have increased in recent years (Wilder et al. 2017), the reasons for this are not clear: reduced summer sea ice is almost certainly not the causal factor (see previous post here).
by Penn State, July 13, 2017 in ScienceDaily
Large, robust, lens-shaped microfossils from the approximately 3.4 billion-year-old Kromberg Formation of the Kaapvaal Craton in eastern South Africa are not only among the oldest elaborate microorganisms known, but are also related to other intricate microfossils of the same age found in the Pilbara Craton of Australia, according to an international team of scientists.
by NY Times, July 13, 2017 in WUWT
The level of renewable use is now so high in Germany that serious electric grid reliability and stability issues now exist which require both fossil power plant emergency backup for failed renewable production and dictate rejecting renewable energy to ensure operation of fossil plants required for electric grid reliability and stability.
by Willis Eschenbach, July 13, 2017 in WUWT
Over at Dr. Curry’s excellent website, she’s discussing the Red and Blue Team approach. If I ran the zoo and could re-examine the climate question, I’d want to look at what I see as the central misunderstanding in the current theory of climate.
This is the mistaken idea that changes in global temperature are a linear function of changes in the top-of-atmosphere (TOA) radiation balance (usually called “forcing”).
by Anthony Watts, July 13, 2017 in WUWT
I thought I’d take a moment from my R&R to write about all the hullabaloo surrounding the calving of the large iceberg off the Larsen C ice shelf in Antarctica. First, a few of the headlines:
LA Times: After Antarctica sheds a trillion-ton block of ice, the world asks: Now what?
The Grauniad: Iceberg twice size of Luxembourg breaks off Antarctic ice shelf
by A. Williams et al., July 13, 2017 in Bloomberg
On Wednesday, Premier Oil Plc, Sierra Oil & Gas and Talos Energy LLC announced the first Mexican discovery by explorers other than state-owned Pemex in 80 years, a reservoir with an estimated 1.4 billion to 2 billion barrels
by James Edward Kamis, January 19, 2017 in ClimateChangeDispatch
Progressive bottom melting and break-up of West Antarctica’s seafloor hugging Larsen Ice Shelf is fueled by heat and heated fluid flow from numerous very active geological features, and not climate change.
from Global Warming Policy Forum, July 12, 2017
A new opinion poll of 10,000 European citizens reveals majority of Europeans reject the claim that climate change is mainly or entirely caused by humans.
For the last few decades, questions about the causes and impacts of climate change have dominated the climate debate. The IPCC and many climate scientists have been claiming relentlessly that the global warming trend since the second half of the 20th century is mainly if not entirely man-made, i.e. as a result of anthropogenic greenhouse gas emissions. This dogma is habitually claimed to be the global climate consensus.
by Ed Hoskins, June1, 2015
When considering the scale of temperature changes that alarmists anticipate because of Man-made Global Warming and their view of the disastrous effects of additional Man-made Carbon Dioxide emissions in this century, it is useful to look at climate change from a longer term, century by century and even on a millennial perspective.
(i) See also here
(ii) See also here
by David Archibald, July 11, 2017 in WUWT
This recent post was on the fact that the Sun’s EUV emissions had fallen to solar minimum-like levels well ahead of solar minimum. The implication was that the Solar Cycle 24/25 minimum was either going to be very deep and prolonged, or that Solar Cycle 24 would be very short, which in turn would be strange for a weak cycle.
by Kenneth Richard, July 11, in ClimateChangeDispatch
It’s official. According to a new paper published in the journal Scientific Reports, Greenland has been cooling slightly since 2005.
This trend development may be a harbinger of what may be in store for the coming years. Shifts in North Atlantic temperatures typically lead changes in the Arctic by a few years. And throughout the North Atlantic, rapid cooling has been underway since 2005, plunging below the levels reached in the 1950s
by International Energy Agency (iea), July 11, 2017
Global energy investment fell by 12% in 2016, the second consecutive year of decline, as increased spending on energy efficiency and electricity networks was more than offset by a continued drop in upstream oil and gas spending, according to the International Energy Agency’s annual World Energy Investment report.
Global energy investment amounted to USD 1.7 trillion in 2016, or 2.2% of global GDP. For the first time, spending on the electricity sector around the world exceeded the combined spending on oil, gas and coal supply. The share of clean-energy spending reached 43% of total supply investment, a record high.
by Connaissances des Energies, 17 février 2015
Les cinq pays disposant des plus importantes réserves de gaz au monde sont :
l’Iran : 33 800 milliards de m3 de réserves prouvées à fin 2013 (soit 18,2% des réserves mondiales) ;
la Russie : 31 300 milliards de m3 de réserves prouvées (16,8%) ;
le Qatar : 24 700 milliards de m3 de réserves prouvées (13,3%) ;
le Turkménistan : 17 500 milliards de m3 de réserves prouvées (9,4%) ;
les États-Unis : 9 300 milliards de m3 de réserves prouvées (5%).
by David Middleton, July 10, 2017 in WUWT
Hubbert’s fame in peak oil circles comes primarily from the assertion that he accurately predicted the 1970 U.S. peak. Because of this prediction, Hubbert is widely-regarded among peak oil adherents as a visionary. He has been called an oracle and a prophet. A recently published article — What Hubbert And Pickens Got Right About Oil, And What’s Next — recounts the uncanny accuracy of his prediction.
Source: Nuclear Energy and the Fossil Fuels by M. King Hubbert
by A.L. Hauptmann et al., July 11, 2017
Globally emitted contaminants accumulate in the Arctic and are stored in the frozen environments of the cryosphere. The microbial potential to degrade anthropogenic contaminants, such as toxic and persistent polychlorinated biphenyls, was found to be spatially variable and not limited to regions close to human activities.
by University of Oregon, July 10, 2017 in ScienceDaily
Volcanic eruptions such as Mount St. Helens’ in 1980 show the explosiveness of magma moving through the Earth’s crust. Now geologists are excited about what uplifted granite bodies such as Yosemite’s El Capitan say about magma that freezes before it can erupt on the surface.
by Paul Homewood, July 10, 2017
CBS have a report on rising sea levels at Tangier Island, in Chesapeake Bay here
The video is worth watching. The CBS reporter makes the usual attempts to blame it on “climate change”, but the locals know too much to fall for that old pony.
They know that sea levels have been rising, and land eroding, since 1850.
And they are right. Tide gauges in the area, such Sewell Point, Norfolk, confirm that sea levels have been steadily rising for a long time, long before recent rises in emissions of CO2.
by Bloomberg News, July 4, 2017
China has promised to make its skies blue again, but having some of the world’s most-expensive natural gas isn’t helping.
by Michael Bernstam, July 3, 2017 in GWPF
The following four stipulations must each be highly probable:
1. Global warming will accumulate at 0.12 degrees Celsius or higher per decade.
2. It is anthropogenic, due largely to carbon dioxide emissions.
3. The net effect is harmful to human well-being in the long run.
4. Preventive measures are efficient, that is, feasible at the costs not exceeding the benefits.
But even if the probability of each of these stipulations is as high as 85 percent, their compound probability is as low as 50 percent. This makes a decision to act or not to act on climate change equivalent to flipping a coin.
by Vencore Weather, July 4, 2017
Much of Greenland has been colder-than-normal for the year so far and has had record or near record levels of accumulated snow and ice since the fall of last year. The first week of this month was especially brutal in Greenland resulting in the record low July temperature and it also contributed to an uptick in snow and ice extent – despite the fact that it is now well into their summer season.
