SurvivalBlog presents another edition of The Survivalist’s Odds ‘n Sods— a collection of news bits and pieces that are relevant to the modern survivalist and prepper from “JWR”. Our goal is to educate our readers, to help them to recognize emerging threats and to be better prepared for both disasters and negative societal trends. You can’t mitigate a risk if you haven’t first identified a risk. Today, we look at changing weather patterns.
New Jet Stream Pattern Could Imperil Crops
Reader C.B. flagged this important article about changing weather patterns: Newly identified jet-stream pattern could imperil global food supplies, says study. Here is how the article begins:
“Scientists have identified systematic meanders in the globe-circling northern jet stream that have caused simultaneous crop-damaging heat waves in widely separated breadbasket regions-a previously unquantified threat to global food production that, they say, could worsen with global warming. The research shows that certain kinds of waves in the atmospheric circulation can become amplified and then lock in place for extended periods, triggering the concurrent heat waves. Affected parts of North America, Europe and Asia together produce a quarter of the world food supply. The study appears this week in the journal Nature Climate Change.
“We found a 20-fold increase in the risk of simultaneous heat waves in major crop-producing regions when these global-scale wind patterns are in place,” said lead author Kai Kornhuber, a postdoctoral researcher at Columbia University’s Earth Institute. “Until now, this was an underexplored vulnerability in the food system. During these events there actually is a global structure in the otherwise quite chaotic circulation. The bell can ring in multiple regions at once.”
Kornhuber warned that the heat waves will almost certainly become worse in coming decades, as the world continues to warm. The meanders that cause them could also potentially become more pronounced, though this is less certain. Because food commodities are increasingly traded on a global scale, either effect could lead to food shortages even in regions far from those directly affected by heat waves.”
JWR Adds: My favorite web site for jet stream weather maps is provided by the folks at Weatherstreet.com. Check out all of the options. It is an amazing resource that I recommend bookmarking.
Portland Mandates ‘Rest Spaces’ for the Homeless
Reader H.L. sent us this: Portland to force new construction to include mandatory ‘rest spaces’ for the homeless.