Important new information related to the preservation and future management of tropical forests (German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig). A research project conducted over the past 40 years has published its results, finding large differences in the manner of growth observed among different species of trees. This knowledge can be put to good use for purposes of conservation and also for predicting future climate changes: “While forests are being impacted by climate change, they are also significantly slowing its pace – estimates are the vegetation of the earth is soaking up approximately 34% of the carbon molecules we emit, annually. However, scientists are not sure whether we will be able to count on this significant ecosystem service in the future. “By advancing our ability to predict forest carbon storage and represent the rich biodiversity within tropical forests, we are now on a path to much more accurately capture important ecological processes in the global models that are used by policy makers to predict the pace of climate change.”
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A different study found that once a forest is fully mature its ability to keep removing carbon from the atmosphere is highly limited, even when the CO2 level is rising (SUNY College of Environmental Science and Forestry). Unlike the situation with younger forests, a point is reached where soil nutrients that are needed for further growth become no longer available, for reasons that are carefully explained. “These findings have global implications: models used to project future climate change, and impacts of climate change on plants and ecosystems, currently assume that mature forests will continue to absorb carbon over and above their current levels, acting as carbon sinks. The findings from EucFACE suggest that those sinks may be weaker or absent for mature forests.” (Regular ongoing sustenance of carbon storage capacity is not discussed, but presumably remains intact in a mature forest.)
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New research stresses the urgent need to make drastic changes in the ‘fast fashion’ industry (University of Manchester). “Urgent fundamental changes to ‘fast fashion’ clothing items which are treated by many as disposable is needed to stem a devastating impact upon the environment…..The fashion industry is the second largest industrial polluter after aviation, accounting for up to 10% of global pollution…..Impacts from the fashion industry include, over 92 million tonnes of waste produced per year and 1.5 trillion litres of water consumed, alongside chemical pollution and high levels of CO2 emissions.” Changes of a substantial nature are then recommended.
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The cement-based concrete construction industry also has a huge climate impact, requiring many levels of transformation that are said to be feasible (Massachusetts Institute of Technology). “Since concrete is the most popular material in the world and cement is the primary binder used in concrete, these two sources of CO2 are the main reason that cement contributes around 8 percent of global emissions.” This article covers a great deal of subject matter, and does so quite clearly. It leaves the impression that there is nothing simple about what needs to be done, nor will it be easy. The role that China must have, as the world’s biggest producer and user by far, is not even mentioned.
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A new technology for the creation of flow batteries is said to provide significant advantages over all other versions (University of Southern California). “The technology is a new spin on a known design that stores electricity in solutions, sorts the electrons and releases power when it’s needed. So-called redox flow batteries have been around awhile, but the USC researchers have built a better version based on low-cost and readily available materials. “We have demonstrated an inexpensive, long-life, safe and eco-friendly flow battery attractive for storing the energy from solar and wind energy systems at a mass-scale.” Details are provided, and they really do sound good, if everything reported here can come to fruition.
Carl