Antarctic krill, a vital part of the marine food chain, are in a serious state of decline. Overfishing and climate change have both been responsible. Climate change has caused a reduction in the ice structure needed for habitat; in addition, rising water temperatures are involved in causing a reduction of krill size by up to 40% in some areas.
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Reducing carbon emissions from Amazon forests has become more complicated because of drought and wildfires. Even when efforts to curb deforestation are successful the problem of wildfires has continued in ways that were never before experienced. Carbon Brief has the whole story.
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There is new knowledge about the heat-trapping power of airborne methane, the second most important greenhouse gas. New research has found an increase of 23% in the direct way it blocks radiation, creating a net gain of about 3% in the actual combined global warming impact of all greenhouse gases. The importance of methane is often downplayed because individual molecules have a relatively short life in the atmosphere. However, the regular replacement rate is such that you rarely see its measured atmospheric level decline when the CO2 level is rising. Methane will generally rise just as rapidly as CO2 and quite often even more rapidly as old sources held on Earth’s surface are commonly released under the influence of rising temperatures. Permafrost thawing provides an example.
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An improvement in the construction of redox flow batteries has been reported. Researchers at two New York universities have discovered novel improvements in the chemistry “that could transform the energy storage landscape.” Redox flow batteries are a type that would have application in large-scale storage systems needed by power grids. Stability over lengthy periods of time is a requirement that has been difficult to achieve with other chemical formulations.
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A different type of breakthrough in battery design has been reported that is said to “double the storage capacity, lower the cost and extend the life of lithium-ion batteries.” (While this is certainly interesting, the company behind the report is relatively small and untested. There is a link to its website.)
Carl