When CO2 levels rise the nutritional value of rice declines. That is the result of new field research, entirely consistent with studies of this and other grains that were conducted in the past, with an additional look at the impact on vitamins. “About two billion people rely on rice as a primary food source and among those that are the poorest, often the consumption of rice in terms of their daily calories is over 50%…..Anything that impacts rice in terms of its nutritional quality is going to have an impact.” This information supplements the broader review of future global warming risks reported in the lead articles of the last two Climate Letters since it largely affects the same population groups.
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Climate change will indeed cause an increase in land suitable for agriculture in boreal regions, including large parts of Canada, Scandinavia, Russia and Alaska that will mainly benefit from longer growing seasons and changes in rainfall as temperatures rise. The same study makes mention of negative impacts for agricultural lands currently in use but makes no attempt to determine the prospect of a net gain or loss.
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Shell Oil Company has known all about the causes and dangers of climate change since 1981, then did everything it could to cover up the facts. This information has been well-documented, similar to the exposure of Exxon reported a few years earlier and taken to court.
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Mixed signals on climate action coming from China. Fred Pearce, writing for Yale e360, covers all of the bases with his usual keen insights. The conclusion—“But if China spends the next decade cleaning up its domestic act by offshoring dirty industries, the grand promises made in Paris to curb warming below 2 degrees Celsius will count to nothing.” (At least China has a strong cadre of clear-thinking climate scientists, as pointed out in yesterday’s letter, who are not completely ignored by its government and could potentially expand their influence.)
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Does nature have legal rights? There is a growing movement behind this concept, with the first law that recognized such rights having been enacted in Pennsylvania in 2006. The author of this article was a person who helped draft that law and promote others like it. The idea may not scale up very far, but its intent can be appreciated, and it can remind us that if nature is not really a “person” it clearly does make laws, and those who deliberately break those laws are likely to end up with regrets.
Carl