Tag Archives: Green House Gases

Burning trees to meet EU renewable energy targets produces more greenhouse gases than coal

“Chopping down trees and transporting wood across the Atlantic Ocean to feed power stations produces more greenhouse gases than much cheaper coal, according to the report. It blames the rush to meet EU renewable energy targets, which resulted in ministers making the false assumption that burning trees was carbon-neutral.” click here

United States Greenhouse Gas Emissions declined in 2015

“The EPA attributed the overall decline to lower carbon dioxide emissions from burning fossil fuels, which itself came about because of less coal consumption in favor of natural gas, warmer winter weather that decreased heating fuel demand and lower electricity demand overall. ” click here

Alaska Warms, Methane Emissions are Stable

Sweeney, C., et al. (2016), No significant increase in long-term CH4 emissions on North Slope of Alaska despite significant increase in air temperature, Geophys. Res. Lett., 43, doi:10.1002/2016GL069292.

Continuous measurements of atmospheric methane (CH4) mole fractions measured by NOAA’s Global Greenhouse Gas Reference Network in Barrow, AK (BRW), show strong enhancements above background values when winds come from the land sector from July to December from 1986 to 2015, indicating that emissions from arctic tundra continue through autumn and into early winter. Twenty-nine years of measurements show little change in seasonal mean land sector CH4 enhancements, despite an increase in annual mean temperatures of 1.2 ± 0.8°C/decade (2σ). The record does reveal small increases in CH4 enhancements in November and December after 2010 due to increased late-season emissions. The lack of significant long-term trends suggests that more complex biogeochemical processes are counteracting the observed short-term (monthly) temperature sensitivity of 5.0 ± 3.6 ppb CH4/°C. Our results suggest that even the observed short-term temperature sensitivity from the Arctic will have little impact on the global atmospheric CH4 budget in the long term if future trajectories evolve with the same temperature sensitivity.

Jupiter Greenhouse Effect Due to Pressure, Not Greenhouse Gases

This post is very interesting. The argument has been that “global warming” will happen on earth just like on Jupiter if atmospheric carbon dioxide is continues to increase. This study refutes that argument.

“Prior work has confirmed the gravito-thermal greenhouse effect on 8 planets including Earth, and why this falsifies the theory of catastrophic man-made global warming. On the basis of this new paper, we find the gravito-thermal greenhouse effect also holds for Jupiter and that the pressure vs. temperature curve satisfies the Poisson Relation of the gravito-thermal greenhouse effect.” click here

Eating Vegetables More Harmful to Environment than Eating Chicken

The metric of “green house gas” emissions is too crude or blunt to be of any practical use as a regulatory device or for discerning the state of environmental quality. But if it is going to be used then we need to look at all of the implications.

“Eating lettuce is over three times worse in greenhouse gas emissions than eating bacon,” said Paul Fischbeck, professor of social and decisions sciences and engineering and public policy. “Lots of common vegetables require more resources per calorie than you would think. Eggplant, celery and cucumbers look particularly bad when compared to pork or chicken.” click here and here

Bacteria Found to Absorb Methane from the Atmosphere

M C Y Lau, B T Stackhouse, A C Layton, A Chauhan, T A Vishnivetskaya, K Chourey, J Ronholm, N C S Mykytczuk, P C Bennett, G Lamarche-Gagnon, N Burton, W H Pollard, C R Omelon, D M Medvigy, R L Hettich, S M Pfiffner, L G Whyte and T C Onstott. An active atmospheric methane sink in high Arctic mineral cryosolsThe ISME Journal (2015) 9, 1880–1891; doi:10.1038/ismej.2015.13;

Methane (CH4) emission by carbon-rich cryosols at the high latitudes in Northern Hemisphere has been studied extensively. In contrast, data on the CH4 emission potential of carbon-poor cryosols is limited, despite their spatial predominance. This work employs CH4 flux measurements in the field and under laboratory conditions to show that the mineral cryosols at Axel Heiberg Island in the Canadian high Arctic consistently consume atmospheric CH4. Omics analyses present the first molecular evidence of active atmospheric CH4-oxidizing bacteria (atmMOB) in permafrost-affected cryosols, with the prevalent atmMOB genotype in our acidic mineral cryosols being closely related to Upland Soil Cluster α. The atmospheric (atm) CH4 uptake at the study site increases with ground temperature between 0°C and 18°C. Consequently, the atm CH4 sink strength is predicted to increase by a factor of 5–30 as the Arctic warms by 5–15°C over a century. We demonstrate that acidic mineral cryosols are a previously unrecognized potential of CH4 sink that requires further investigation to determine its potential impact on larger scales. This study also calls attention to the poleward distribution of atmMOB, as well as to the potential influence of microbial atm CH4 oxidation, in the context of regional CH4 flux models and global warming.

Climate Sensitivity to CO2 is Negligible

Martin Hertzberg Climate Change Recosidered II – Physical Science Energy and Environment, Volume 26, No. 3, 547-553.

“While the NIPCC concedes that CO2 is a “mild greenhouse gas” that might cause some mild heating, such heating far from representing a “climate crisis” would actually be beneficial to mankind. The Global Climate Models produced by the IPCC predicted drastic warming up to 6 C for decades to come. Those predictions have been falsified by the data. In fact, during the past 17 years, even as atmospheric CO2 concentrations have increased by 8%, the Earth’s average temperature has not increased. While prior to 1995 there was a parallelism between the CO2 increase and temperature rise, such a parallelism does not prove causation, and in fact that parallelism has ceased since the mid-1990’s. In geologic time, Earth’s temperature has oscillated naturally between +4C and -6C relative to current values. Those fluctuations are driven by glacial coolings and interglacial warmings caused mainly by changes in the ellipticity of the Earth’s orbit. The Earth’s overall warming since 1860 corresponds to its recovery from the Little Ice Age as modulated by ocean-atmosphere oscillations and variations in solar activity.” click here to read the full paper.