Wednesday 28 August 2019

NASA Warnings – The Global Food Crisis Is Here

Ask people to name the biggest dangers posed by climate breakdown, and most will start listing off extreme weather events. Destructive hurricanes, towering storm surges, deadly heat waves, flash floods, and wildfires. This is hardly surprising, given how our image-oriented media system has covered the climate crisis. Extreme weather events give us something concrete to point to. We can see them happening in real time, and anyone who’s paying any attention at all can tell that they’re getting worse.
But while extreme weather poses a real threat to human societies (consider what Hurricane Maria did to Puerto Rico), some of the most worrying aspects of climate change are much less obvious and almost even invisible. A new 1,400-page report from the Intergovernmental Panel on Climate Change (IPCC) is a case in point. It explores the impacts of climate breakdown on the most fundamental, even intimate feature of human civilization—our food system.
There is a troubling irony here. Climate change is undermining global food systems, but at the same time our food systems are a major cause of climate breakdown. According to the IPCC, agriculture contributes nearly a quarter of all anthropogenic greenhouse gas emissions.
Of course, it’s not just any kind of agriculture that’s the problem here—it’s specifically the industrial model that has come to dominate farming over the past half-century or so. This approach relies not only on aggressive deforestation to make way for large-scale monoculture, which alone generates 10 percent of global greenhouse gases; it also depends on intensive plowing and heavy use of chemical fertilizers, which is rapidly degrading the planet’s soils and in the process releasing huge plumes of carbon dioxide into the atmosphere.
This might appear to be an insurmountable problem, on the face of it. After all, we need to feed the world’s population, and intensive farming seems like the most efficient way to do it. If anything, given that around a billion people don’t get enough food to eat as it is, we should probably be doing more of it. And if that’s the case, it seems virtually impossible to meet our climate goals while at the same time producing enough food to feed the world.
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VIA : nasa.gov

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NASA Warnings – The Global Food Crisis Is Here
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