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Study finds methane emissions from coal mines ~50% higher than previously thought

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The amount of methane released into the atmosphere as a result of coal mining is likely approximately 50% higher than previously estimated, according to research presented at the recent annual meeting of the American Geophysical Union. The authors point out that less coal production doesn’t translate to less methane.

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BloombergNEF: clean energy investment in developing nations slumps as financing in China slows; coal burn surges to record high

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While the number of new clean power-generating plants completed stayed flat year-to-year, the volume of power derived from coal surged to a new high, according to Climatescope , an annual survey of 104 emerging markets conducted by research firm BloombergNEF (BNEF). thousand terawatt-hours in 2018, up from 6.4 thousand in 2017.

Coal 243
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Study finds climate impact of hydropower varies widely

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earlier post ), a new study by a team at Environmental Defense Fund finds that the climate impact of hydropower facilities varies widely throughout the world and over time, with some facilities emitting more greenhouse gases than those burning fossil fuels. They also estimated emissions caused by flooding the reservoir.

Climate 207
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Study finds total greenhouse gas footprint of blue hydrogen “quite high” due to fugitive methane

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“Blue” hydrogen—produced through steam methane reforming (SMR) of natural gas or coal gasification, but with CO 2 capture and storage—is being described as having low or zero carbon emissions. Even if true though, the use of blue hydrogen appears difficult to justify on climate grounds. —Howarth and Jacobson.

Hydrogen 414
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MIT study concludes that absent climate policy, coal-to-liquids could account for around a third of global liquid fuels by 2050

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The top graph depicts CTL in a no policy scenario; the bottom graph, for CTL in a world climate policy scenario. However, the viability of CTL becomes quite limited in regions with climate policy due to the high conversion cost and huge carbon footprint. Credit: Chen et al., 2011 Click to enlarge.

Coal 247
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DOE and Air Force issue RFI on Mil-Spec jet fuel production using coal-to-liquid technologies

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The US Department of Energy (DOE) in partnership with the US Air Force has issued a request for information (RFI)— DE-FOA-0000981 —on research & development aimed at greenhouse gas emissions reductions and cost competitiveness of Mil-Spec jet fuel production using coal-to-liquid (CTL) fuel technologies. Information Request.

Coal 207
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Study Concludes Peak Coal Will Occur Close to 2011

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A multi-Hubbert analysis of coal production by Tadeusz Patzek at The University of Texas at Austin and Gregory Croft at the University of California, Berkeley concludes that the global peak of coal production from existing coalfields will occur close to the year 2011. The CO 2 emissions from burning this coal will also decline by 50%.

Coal 357