What would it mean if all the sea ice covering the Arctic Ocean were to disappear? Three scientists have calculated an answer, in process of publication. From the Abstract, “Assuming constant cloudiness, we calculate a global radiative heating of 0.71 W/m2 relative to the 1979 baseline state. This is equivalent to the effect of one trillion tons of CO2 emissions. These results suggest that the additional heating due to complete Arctic sea ice loss would hasten global warming by an estimated 25 years.” (I believe an additional 0.71 W/m2 in Earth’s radiative balance is equal to about one-half degree of extra warming, a permanent feedback.)
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From Ireland, a team of researchers has found a way to dramatically improve the performance of batteries of all sizes (The Irish Times). The batteries would be more compact, quicker to charge, and have 250% more energy density than any other battery on the market. Their method largely uses the same materials as regular lithium batteries, but in a more effective way. The airline industry is potentially a major market—“large battery-powered aircraft could become feasible once the batteries can store 400 watts per hour. Our technology is at 480 watts.”
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More strong summer dust storms as a result of climate change (Arizona Republic). These may not be the worst things that will happen, but they are both nasty and amazing. For those interested, this story has first-rate coverage.
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Massive programs aimed at rebuilding forests are underway in many parts of the world (The Guardian). “Forests can stop runaway global heating, encourage rainfall, guarantee clean water, reduce air pollution, and provide livelihoods for local people and reserves for rare wildlife…..reforestation and other ecological restoration capture carbon and tackle the climate crisis. Such solutions could provide 37% of the greenhouse gas mitigation required to provide a good chance of stabilising global heating below the critical 2C threshold.” Groups led by women have proven to be the most effective, and more are needed.
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Toward a better understanding of the ideology behind economic growth (Ecologist). The author of this article gives us a short history of the development and globalization of the seemingly unstoppable force that propels climate change. He tends to put more blame on the producing class than on consumers, something that is surely worthy of debate, or at least thinking about, truly fundamental for anyone trying to find answers to the problem.
Carl