A genetic discovery could be of great help in the quest to remove CO2 from the atmosphere (iNews). As reported in a new study in the journal Cell, scientists “have identified a gene that helps determine how deep a plant’s roots will grow which they say could be used to engineer trees to have longer, deeper roots. The elongated roots would be able to store more carbon than the shorter, existing ones. Engineering vast numbers of trees to have longer roots could curb global warming by greatly increasing the amount of CO2 they absorb from the atmosphere.” This would be quite exciting if all goes well. Is it credible? “His team has been given £28 million from a group of institutions to carry out further research.”
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The ten countries most vulnerable to effects of climate change (TIME). Nine of the ten are located in sub-Sahara Africa—Haiti is the one exception—and all nine are projected to have the world’s fastest population growth in coming decades. That is a bad combination with respect to promoting more conflicts, altogether increasing the need for outside assistance and finding suitable places of refuge.
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The latest news about Alaskan wildfires (EcoWatch). Here is one item that I found especially interesting as an eye-opener: “Currently, more than 550,000 of the 782,681 acres on fire in the U.S. are in Alaska…..To put that in perspective, 505,900 acres burned in California in the state’s record wildfire year in 2017. However, fires in Alaska tend not to threaten human communities as often…..Alaskans are used to living with fire.”
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How California lost 150 million trees in the wake of the recent drought (Smithsonian). “…a similar drought between 1987 and 1992 was as dry as the recent drought period. The big difference, however, was the heat. This time around, temperatures averaged 2.16 degrees higher, meaning the trees lost water more quickly.” That led to a cascade effect, which came to a head in 2016. Future warming could make the effect even worse during times of drought in places where tree density is high.
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Climate change has a number of different effects on hurricanes and the outcome of each hurricane season (Yale Climate Connections). This article provides answers to many common questions from leading scientists. There still seems to be some uncertainty about how much the growth in rainfall will be under expected warmer conditions.
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Five things to know about blue-green algae (Tampa Bay Times). This is a good report for covering all the basics.
Carl