How should we think about the cost of mitigating the damage from climate change? This essay from Scientific American mainly stresses the need to talk about it in realistic ways. The conclusion, which deniers might not agree with, is that the highest cost is the cost of doing nothing. The idea that we can make a smooth transition to clean energy without any kind of alteration or even setback in the course of economic growth needs to be questioned. It happens to be a question that no politician wants to hear about, especially those who face a regular election process, which means we end up being limited to actions that are likely much too timid. Points like this should be discussed more clearly and more often.
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A good example of an organized group that thinks there is no easy road to climate mitigation. With a global population that has far outgrown available resources, the writer does not see how economic growth can provide the solution to all our problems, but may worsen them instead. Whether or not you agree with all he says, this is a good way to highlight some of the deeper issues that the broad public should be able to understand, once people become more fully engaged.
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What is behind the rise in toxic algae blooms? A research team has been studying different strains of blue-green algae, not all of which are toxic. The toxic kind seem to thrive best when the level of CO2 dissolved in water is high, along with the water being warm. Nothing is said about how the resulting problem might be controlled.
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A sea level report for US homeowners, from Zillow. Results are based on recent estimates of a six-foot rise in sea level by the end of this century. Zillow has the ability to know exactly which homes are thereby exposed to being drowned, and even a close estimate of the market value of each. It adds up to almost one trillion dollars, and that does not include all the other kinds of property in the same situation.
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A new poll, updated twice yearly since 2008, shows some shifts in American attitudes toward the science of climate change. It is especially noted that the difference between believers and skeptics has become more polarized than ever, and more of a partisan issue. Among persons identified as Republicans there was an unusually sharp increase in the numbers of those who are either unsure or have strong doubts, which developed in just the last six months.
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An online course in climate science is again available. The course, which is free, gives special attention to the arguments of climate change deniers, and how the evidence provided by good science refutes those arguments.