Just within the last 5 months, 58 more papers and 80 new graphs have been published that continue to undermine the popularized conception of a slowly cooling Earth temperature history followed by a dramatic hockey-stick-shaped uptick, or an especially unusual global-scale warming during modern times.
A new global assessment reveals that increases in leaf abundance are causing boreal areas to warm and arid regions to cool. The results suggest that recent changes in global vegetation have had impacts on local climates that should be considered in the design of local mitigation and adaptation plans.
Water reservoirs created by damming rivers could have significant impacts on the world’s carbon cycle and climate system that aren’t being accounted for, a new study concludes.
The study, conducted by researchers at the University of Waterloo and the Université libre de Bruxelles, appears in Nature Communications. It found that man-made dam reservoirs trap nearly one-fifth of the organic carbon moving from land to ocean via the world’s rivers.
The United States has a broader array of energy options than China does. However, China is innovating and investing heavily in what it has, and some of the transformations it is achieving already are truly impressive.
China’s leaders have made a strategic choice about the direction of the country: They are aiming to shift from an economy based on heavy, polluting industries to one driven by technology and innovation. The political will for this upgrade has roots in both international geostrategic ambitions and domestic popular grievances about lagging standards of living—and it is beginning to bear fruit. In the process, however, vested interests and technical stumbling blocks have wasted resources and acted as a ballast against Chinese progress. China has the potential to do much more, and the international community should push it to achieve that potential.
239 people were required to examine over 210,000 0.5 hectare (1.2 acre) sample plots in GoogleEarth, and classify the cover as open or forested. Thing of being condemned to looking at that many satellite views of real estate. Anyway, Here’s the resultant cool map…
Good news about climate change is especially rare in the Arctic. But now comes news that increases in one greenhouse gas—methane—lead to the dramatic decline of another. Research off the coast of Norway’s Svalbard archipelago suggests that where methane gas bubbles up from seafloor seeps, surface waters directly above absorb twice as much carbon dioxide (CO2) as surrounding waters. The findings suggest that methane seeps in isolated spots in the Arctic could lessen the impact of climate change.
The core of Salby’s theory is derived using CO2 data from MLO’s Keeling Curve since 1958, and satellite temperature data since 1979. (His few charts reaching back to 1880 contain acknowledged large uncertainties.) His theory builds off a simple observation, that in ‘official’ estimates of Earth’s carbon cycle budget, anthropogenic CO2 is only a small source compared to large natural sources and sinks.
The Age of Exploration may be long past, but even in the 21st century, our maps can still get a major update. Using satellite imagery, a new study has found hidden forests all over the world—almost enough for a second Amazon—in areas with little moisture known as drylands.
A new estimate of dryland forests suggests that the global forest cover is at least 9 percent higher than previously thought. The finding will help reduce uncertainties surrounding terrestrial carbon sink estimates.
Temp data in dispute can reverse conclusions about human influence on climate.
Exploring some of the intricacies of GW [Global Warming] science can lead to surprising results that have major consequences. In a recent invited talk at the Heartland Institute’s ICCC-12 [Twelfth International Conference on Climate Change], I investigated three important topics:
1. Inconsistencies in the surface temperature record.
2. Their explanation as artifacts arising from the misuse of data.
3. Thereby explaining the failure of IPCC to find credible evidence for anthropogenic global warming (AGW).
S. Fred Singer is professor emeritus at the University of Virginia and a founding director of the Science & Environmental Policy Project; in 2014, after 25 years, he stepped down as president of SEPP. His specialty is atmospheric and space physics…
Global warming alarmists and climate scientists have predicted that the Arctic Ocean will be ice-free by 1979, or 2000, or 2008, or 2012, or 2013, or 2015, or 2020, or 2030, or 2050 or …
An important aspect of the climate change debate can be summed up like this: “One position holds that medieval warm temperatures reached levels similar to the late twentieth century and maintained that the LIA was very cold, while another position holds that past variability was less than present extremes and that the temperature rise of recent decades is unmatched”. This video challenges whether the rise of recent decades is unmatched.
Terrestrial ecosystems play a significant role in the global carbon cycle and offset a large fraction of anthropogenic CO2 emissions. The terrestrial carbon sink is increasing, yet the mechanisms responsible for its enhancement, and implications for the growth rate of atmospheric CO2, remain unclear.
web- Comments
Jim McIntosh , David Mulberry and 2 others posted in Air-Climate-Energy (Jim McIntosh 9 May at 11:18): Reposting because those AGW alarmists hate this report. Yes, plants are doing it better than any carbon tax and they do it for free… as long as we don’t cut them down. You’d think we’d learn by now that managing climate comes back to how we have mismanaged the planet’s forests.
“on comparing the temperature of urban areas and rural areas, various researchers have concluded that the urban effect could account for between 40% and 80% of the observed thermal trend in the last few decades,”
According to overseers of the long-term instrumental temperature data, the Southern Hemisphere record is “mostly made up”. This is due to an extremely limited number of available measurements both historically and even presently from the south pole to the equatorial regions.
Below is an actual e-mail conversation between the Climate Research Unit’s Phil Jones and climate scientist Tom Wigley. Phil Jones is the one who is largely responsible for making up the 1850-present temperature data for the Met Office in the UK (HadCRUT).
I have recently been asked to comment on three articles published in The Economist. My background for such a response is as a Professor of Petroleum Geology and Sedimentology (ret.), a former Director-Energy for the Geological Survey of Canada, a former researcher in industry, and as an academic researcher on sea level changes and climate documentation through geologic time, Natural Resources of the Future and a couple of decades of studies in the Arctic.
1) Skating on thin ice: The thawing Arctic threatens an environmental catastrophe. Apr 27, 2017
by DMI (Danish Meteorological Institute), May, 2017
Here you can follow the daily surface mass balance on the Greenland Ice Sheet. The snow and ice model from one of DMI’s climate models is driven every six hours with snowfall, sunlight and other parameters from a research weather model for Greenland, Hirlam-Newsnow.
The EU’s statistical agency Eurostat announced Thursday (4 May) that CO2 emissions resulting from the EU’s energy use have “slightly decreased” in 2016, compared to the year before.
But Eurostat’s press release did not mention that the small decrease has not made up for the small increase in CO2 emissions the year before, and that more CO2 was emitted in 2016 than in 2014.
Jean-Claude Pont écrit au rédacteur en chef de « Science … & pseudo-sciences », à propos de l’article « réchauffement climatique » paru dans le numéro 317 de la revue. Il entend rectifier ce qu’il tient pour « des manquements importants, parfois des ambiguïtés, voulues ou inconscientes ».
A new paper has been published in the Analysis section of Nature called Reconciling controversies about the ‘global warming hiatus.’ It confirms that the ‘hiatus’ or ‘pause’ is real. It is also rather revealing.
It attempts to explain the ‘Pause’ by looking into what is known about climate variability. They say that four years after the release of the IPCC AR5 report, which contained much about the ‘hiatus’ it is time to see what can be learned.
One could be a little sarcastic in saying why would Nature devote seven of its desirable pages to an event that some vehemently say never existed and maintain its existence has been disproved long ago. Now, however, as the El Nino spike of the past few years levels off, analysing the ‘pause’ seems to be coming back into fashion.
At the peak of the last ice age, a vast ice sheet covered northern Europe, spanning from the British Isles, across Scandinavia and into Russia in the east and the Barents Sea in the north. A new reconstruction of this ice sheet shows the interaction between climate and glaciers — how the ice sheet grows and retreats
An international team of researchers, led by the UK Centre for Polar Observation and Modelling at the University of Leeds, are the first to map the change in ice speed. The team collated measurements recorded by five different satellites to track changes in the speed of more than 30 glaciers since 1992.
Glacier flow at the southern Antarctic Peninsula has increased since the 1990s, but a new study has found the change to be only a third of what was recently reported.
Richard Lindzen is the Alfred P. Sloan Professor of Atmospheric Sciences, Emeritus at Massachusetts Institute of Technology.
For over 30 years, I have been giving talks on the science of climate change. When, however, I speak to a non-expert audience, and attempt to explain such matters as climate sensitivity, the relation of global mean temperature anomaly to extreme weather, that warming has decreased profoundly for the past 18 years, etc., it is obvious that the audience’s eyes are glazing over.
La géologie, une science plus que passionnante … et diverse
