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TL;DR: In this paper, the authors apply an earth systems model to describe the uncertainty in climate projections under two different policy scenarios, and find that in the absence of greenhouse gas emissions restrictions, there is a one in forty chance that global mean surface temperature change will exceed 4.9 °C by the year 2100.
Abstract: To aid climate policy decisions, accurate quantitative descriptions of the uncertainty in climate outcomes under various possible policies are needed. Here, we apply an earth systems model to describe the uncertainty in climate projections under two different policy scenarios. This study illustrates an internally consistent uncertainty analysis of one climate assessment modeling framework, propagating uncertainties in both economic and climate components, and constraining climate parameter uncertainties based on observation. We find that in the absence of greenhouse gas emissions restrictions, there is a one in forty chance that global mean surface temperature change will exceed 4.9 °C by the year 2100. A policy case with aggressive emissions reductions over time lowers the temperature change to a one in forty chance of exceeding 3.2 °C, thus reducing but not eliminating the chance of substantial warming.
306 citations
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TL;DR: In this paper, a simple opto-electronic device is described for measuring lifetimes of a long-lived fluorophore with a frequency-modulated LED as light source.
265 citations
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TL;DR: A review of vehicle exhaust particulate emission measurements can be found in this article, where the focus is on current and newly evolving instrumentation, including gravimetric filter measurement, chemical analysis of filters, light extinction, scattering and absorption instruments, and instruments based on the electrical detection of exhaust aerosols.
249 citations
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TL;DR: In this paper, the preparation of methyl esters of used frying oil, available as waste from restaurants and households, is described, and fuel specifications of this fuel are given, and values for gaseous (HC, CO, NOx) and particulate emissions, measured with a vehicle powered by a turbocharged, direct injection diesel engine, are shown.
Abstract: The preparation of methyl esters of used frying oil, available as waste from restaurants and households, is described. Fuel specifications of this fuel are given, and values for gaseous (HC, CO, NOx) and particulate emissions, measured with a vehicle powered by a turbocharged, direct injection diesel engine, are shown. The ester fuel shows slightly lower HC and CO emissions but increased NOx values compared with reference US-2D fuel. The particulate emissions, however, are significantly lower with used frying oil. Preliminary results of an engine road test are described.
211 citations
Authors
Showing all 1922 results
Name | H-index | Papers | Citations |
---|---|---|---|
Dieter Schmalstieg | 66 | 532 | 17188 |
Andreas Stelzer | 36 | 334 | 4768 |
Barouch Giechaskiel | 34 | 101 | 3196 |
Mario Kupnik | 31 | 177 | 2728 |
Wilhelm Graupner | 29 | 106 | 2602 |
Luigi del Re | 27 | 251 | 2706 |
Viktor Hacker | 27 | 187 | 2987 |
Tobias Werner | 27 | 66 | 1941 |
Bernhard Peters | 25 | 160 | 2189 |
Stephen Jones | 24 | 99 | 2703 |
Denis Kalkofen | 24 | 67 | 1585 |
Michael Donoser | 21 | 78 | 2012 |
Marc J.P. Leiner | 21 | 27 | 1822 |
Branislav Basara | 19 | 116 | 1160 |
Zhendong Ma | 19 | 49 | 1754 |