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Universal Hydrogen secures additional $62M in financing to accelerate first test flight of hydrogen-powered regional aircraft to 2022

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Universal Hydrogen closed a $62-million new funding round; the oversubscribed round was completed less than six months after the company’s Series A ( earlier post ), bringing total raised to $85 million. Full-scale prototype of Universal Hydrogen's gaseous hydrogen module, with one capsule removed.

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Black carbon is a much larger cause of climate change than previously assessed; about twice previous estimates, and 2/3 the effect of CO2

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The report’s best estimate of direct climate influence by black carbon is about a factor of two higher than most previous work. This includes the estimates in the 2007 Intergovernmental Panel on Climate Change (IPCC) Assessment, which were based on the best available evidence and analysis at that time. Bond et al.

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Study projects thermoelectric power in Europe and US vulnerable to climate change due to lower summer river flows and higher river water temperatures

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Projected changes in summer mean usable capacity of power plants in the US and Europe for the SRES A2 emissions scenario for the 2040s (2031–2060) relative to the control period (1971–2000). A study published in Nature Climate Change suggests that thermoelectric power plants (i.e., Source: van Vliet et al. Click to enlarge.

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Improved measurements of sun to advance understanding of climate change

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Scientists have taken a major step toward accurately determining the amount of energy that the sun provides to Earth, and how variations in that energy may contribute to climate change. —Greg Kopp of the Laboratory for Atmospheric and Space Physics (LASP) of the University of Colorado Boulder.

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MIT researchers conclude fundamental changes in the US energy-innovation system are needed to meet challenges of climate change and energy supply

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A three-year study by a team of researchers based at MIT has concluded that fundamental changes are needed in the US energy-innovation system. For each year of delay it will be necessary to “bend the curve” of carbon emissions that much more sharply if the worst consequences of climate change are to be averted.

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New method details contributions of climate change & natural variability to rapid Arctic ice loss

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The study, from the University of Washington, the University of California Santa Barbara and federal scientists, is published in Nature Climate Change. Ding designed a new sea ice model experiment that combines forcing due to climate change with observed weather in recent decades.

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Study finds global rivers and streams emitting 3x IPCC estimates of the GHG N2O

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That’s three times the amount estimated by the Intergovernmental Panel on Climate Change (IPCC). Nitrous oxide is a potent greenhouse gas that contributes to climate change and stratospheric ozone destruction. —Jake Beaulieu of the University of Notre Dame and the US EPA, and lead author of the PNAS paper.