Results 61 to 70 of about 4,465,271 (408)

A case study in competing methane regulations: Will Canada’s and Alberta’s contrasting regulations achieve equivalent reductions?

open access: yesElementa: Science of the Anthropocene, 2020
The Canadian federal government and the Province of Alberta (the dominant oil and gas producing province) have released competing methane regulations for the oil and gas sector intended to take effect between January 2020–2023. Provisions in Canadian law
Matthew R. Johnson, David R. Tyner
doaj   +1 more source

Application of a hygroscopicity tandem differential mobility analyzer for characterizing PM emissions in exhaust plumes from an aircraft engine burning conventional and alternative fuels [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
In the last several decades, significant efforts have been directed toward better understanding the gaseous and particulate matter (PM) emissions from aircraft gas turbine engines.
M. B. Trueblood   +6 more
doaj   +1 more source

UAA Inventory: Greenhouse Gas Emissions From Transportation [PDF]

open access: yes, 2008
As a signatory of the American College and University Presidents Climate Commitment, UAA has agreed to conduct an inventory of its greenhouse gas (GHG) emissions.
Colt, Steve   +2 more
core  

An integrated approach to mixing sensitivities in tropospheric chemistry: a basis for the parameterization of subgrid-scale emissions for chemistry transport models [PDF]

open access: yes, 2003
The net effect on the global atmosphere of a continuous isolated chemical source is considered under idealized conditions. A general framework is described that allows M i , the steady state global perturbation to the ith species due to the source, to be
Esler, J.G.
core   +1 more source

Coherent emission [PDF]

open access: yesProceedings of the International Astronomical Union, 2008
AbstractThe theory of plasma emission and of electron cyclotron maser emission, and their applications to solar radio bursts and to Jupiter's decametric radioation (DAM) and the Earth's auroral kilometric radiation (AKR) are reviewed, emphasizing the early literature and problems that remain unresolved.
openaire   +2 more sources

Net-zero emissions energy systems

open access: yesScience, 2018
Path to zero carbon emissions Models show that to avert dangerous levels of climate change, global carbon dioxide emissions must fall to zero later this century. Most of these emissions arise from energy use. Davis et al.
Steven J. Davis   +31 more
semanticscholar   +1 more source

Energy structure, digital economy, and carbon emissions: evidence from China

open access: yesEnvironmental science and pollution research international, 2021
As a new production factor, digitalization plays a vital role in society, economy, and the environment. Based on the expanded STIRPAT model, this paper empirically tests the impact of energy structure and digital economy on carbon emissions by panel data
Yan Li   +5 more
semanticscholar   +1 more source

Characterization of uncertainties in atmospheric trace gas inversions using hierarchical Bayesian methods [PDF]

open access: yes, 2014
We present a hierarchical Bayesian method for atmospheric trace gas inversions. This method is used to estimate emissions of trace gases as well as "hyper-parameters" that characterize the probability density functions (PDFs) of the a priori emissions ...
Fraser, P. J.   +15 more
core   +4 more sources

RCP8.5 tracks cumulative CO2 emissions

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2020
Climate simulation-based scenarios are routinely used to characterize a range of plausible climate futures. Despite some recent progress on bending the emissions curve, RCP8.5, the most aggressive scenario in assumed fossil fuel use for global climate ...
C. Schwalm, Spencer Glendon, P. Duffy
semanticscholar   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

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