The temperature of Swiss alpine river water is rising as fast as regional air temperatures (Ecole Polytechnique Federale de Lausanne). “They observed that river waters had warmed by an average of 0.33°C per decade since 1980, and by 0.37°C per decade in the last 20 years.” This unusual study was focused on local effects, which are serious, but had nothing to say about potential climate impacts. It certainly raises questions. What about all the rest of the world’s rivers—are they having the same kind of increases, or not? Collectively they dump a huge amount of water into the oceans each day, and if all that water is warming at a faster rate than the ocean water on the receiving end, it stands to reason that the latter is already being infected with a faster rate of warming than it otherwise would experience. Whatever past measurements are available need to be studied, and future programs initiated, so the information gathered could be incorporated into climate models. A feedback of the unwanted “positive” type would seem to be a possibility.
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Methane being released from the Arctic Ocean is far below the amounts that some have claimed (Stockholm University). New techniques for measuring actual methane fluxes are clearly superior to those upon which the previous claims were made, often catastrophically large. “The peak emissions are indeed large but at the same time they are also extremely limited in area…..So this is, I would say, a bit of good news in the global warming story. Yes, there is methane leaking from the Arctic Ocean to the atmosphere. But, at least for now, it is not globally important to atmospheric methane and global warming.”
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Researchers find a connection between rapid weather swings and increased risk of flu epidemics (Florida State University). “….an international team looked at historical data to see how significant weather swings in the autumn months affect flu season in highly populated regions of northern-mid latitudes of the world. They specifically looked at the United States, mainland China, Italy and France…..The issue going forward, scientists noted, is that rapid weather variability is common in warming climates. Having a better understanding of those weather patterns may be key to determining the severity of any future flu season threat. If these climate models are correct, there is an anticipation of increased flu risk in highly populated areas.”
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An analysis of how government-backed loans from G20 nations are used to support fossil fuel projects (Phys.org). “Rich nations are funneling cash through government-backed financial institutions to provide $30 billion to fossil fuel projects each year that run counter to the Paris Agreement…..The export credit agencies (ECAs) of G20 countries currently provide more than 10 times more state-backed finance to oil, gas and coal projects abroad than they do to renewable energy schemes…..The analysis singled out China, Japan, South Korea and Canada as among the worst offenders, accounting for 78 percent of G20 fossil fuel support from 2016-2018.” This all happened in the wake of the signing of the Paris Agreement in 2015. Now that it has been exposed, will steps be taken to halt the practice? (The next story reveals a better way to spend the money.)
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A new study uncovers the potential for regenerative agriculture to add more carbon to the soil (Yale Climate Connections). To date, modern farming practices that strip organic matter from the ground mean that between 20 and 60% of the carbon once stored in the world’s agricultural soils has been lost. According to a leading expert on soil carbon that trend must be reversed, and he can tell us how to do it. By his calculations, “agricultural land could capture the equivalent of around 20% of annual global emissions.” Getting farmers to cooperate is a requirement, the key to which will be a system of payments. There is a growing awareness of this need and activities have been started, several of which he describes.
Carl