by Kenneth Richard, June 29, 2017 in NoTricksZone
For the last 3 years, human CO2 emissions rates have not risen. In fact, according to the IEA, we burned slightly more fossil fuels in 2014 than we did in both 2015 and 2016.
Despite the lack of growth – even slight decline – in human emissions rates during 2014 – 2016, the atmospheric CO2 parts per million (ppm) concentration grew rapidly – by more than 8 ppm (397 ppm to 405 ppm).
by Washington University in St-Louis, June 29, 2017 in ScienceDaily
If aliens sent an exploratory mission to Earth, one of the first things they’d notice — after the fluffy white clouds and blue oceans of our water world — would be the way vegetation grades from exuberance at the equator through moderation at mid-latitudes toward monotony at higher ones. We all learn about this biodiversity gradient in school, but why does it exist?
by David Whitehouse, June 29, 2017
Between the start of 1997 and the end of 2014, average global surface temperature stalled. This 18-year period is known as the global warming pause, also sometimes referred to as the global warming hiatus. The rise in global temperatures that alarmed climate campaigners in the 1990s had slowed so much that the trend was no longer statistically significant. It has been the subject of much research and debate in peer-reviewed scientific journals.
by Paul Homewood, June 29, 2017
Sea level alarmists often claim that the rate of sea level rise is increasing. They need to do this to convince the public that the innocuous 7” or so of sea level rise experienced in the 20thC is suddenly going to turn into meters by 2100.
See also here
by Y. Xie, J. Huang and Y. Liu, June 26, 2017 in CO2Science
One of the many conundrums facing climate alarmists — who predict that dangerous future global warming will result from increasing concentrations of atmospheric CO2 — is the existence of the aptly-named “warming hiatus.” Also referred to as the “warming pause,” this phenomenon describes a nearly two-decade-long leveling off of global temperatures despite a ten percent increase in atmospheric CO2 concentration since 1998. The significance of these observations resides in the fact that all climate models project that temperatures should not be levelling off, but should be increasing (despite interannual variability) in direct consequence of the ongoing rise in atmospheric CO2.
by University of Cambridge, June 28, 2017 in ScienceDaily
Using a technique called ‘seismic noise interferometry’ combined with geophysical measurements, the researchers measured the energy moving through a volcano. They found that there is a good correlation between the speed at which the energy travelled and the amount of bulging and shrinking observed in the rock. The technique could be used to predict more accurately when a volcano will erupt. Their results are reported in the journal Science Advances.
by Michel de Rougemont, June 28, 2017 in WUWT
We hear that global warming is highly dependent on the concentration of carbon dioxide in the atmosphere, this gas that is required to sustain life on Earth and that is also emitted when burning flammable stuff, such as wood, coal, mineral and organic oils, or methane.
If you are told “this depends on that”, you are invited to examine available data observed over time to draw a representation of this on the y-axis vs. that on the x-axis.
So, in all logic, you should be interested in a representation of the temperature evolution in dependence of the atmospheric CO2 concentration.
Yes, you should, but, looking hard into the latest IPCC Report (the fifth of Working Group I, to be precise), no diagram of that sort can be found among its 1535 pages.
by Andrew Follett, June 28 in ClimateChangeDipatch
The study found that dispersants broke up the oil into tiny droplets, making them less buoyant and unable to float to the surface. This meant that the oil formed a layer deep below the surface of the water, making it easier for microbes that live in the deep ocean to eat it. However, scientists weren’t able to measure the exact amount of oil eliminated by the microbes.
Due largely to these oil-eating bacteria, the Gulf of Mexico recovered from the Deepwater Horizon oil spill faster than scientists thought possible and has returned to pre-spill levels of environmental health.
by Prof. A. Collins and PhD A. Merdith, June 27, 2017
Earth is estimated to be around 4.5 billion years old, with life first appearing around 3 billion years ago.
To unravel this incredible history, scientists use a range of different techniques to determine when and where continents moved, how life evolved, how climate changed over time, when our oceans rose and fell, and how land was shaped. Tectonic plates – the huge, constantly moving slabs of rock that make up the outermost layer of the Earth, the crust – are central to all these studies.
Along with our colleagues, we have published the first whole-Earth plate tectonic map of half a billion years of Earth history, from 1,000 million years ago to 520 million years ago.
See also here and here (in French)
by Anthony Watts, June 27, 2017 in WUWT
Global temperatures have generally settled to +0.26°C compared to 1981-2010 climatology continuing downward glide thru 2017 (black line).