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When we think about threats to the
environment, we tend to picture cars and
smokestacks, not dinner. But the truth is, our
need for food poses one of the biggest
dangers to the planet.
Source: National Geographic
Agriculture is among the greatest contributors to
global warming, emitting more greenhouse gases
than all our cars, trucks, trains, and airplanes
combined—largely from methane released by
cattle and rice farms, nitrous oxide from fertilized
fields, and carbon dioxide from the cutting of rain
forests to grow crops or raise livestock. Farming is
the thirstiest user of our precious water supplies
and a major polluter, as runoff from fertilizers and
manure disrupts fragile lakes, rivers, and coastal
ecosystems across the globe. Agriculture also
accelerates the loss of biodiversity. As we’ve
cleared areas of grassland and forest for farms,
we’ve lost crucial habitat, making agriculture a
major driver of wildlife extinction. Source: National Geographic
The environmental challenges posed by
agriculture are huge, and they’ll only become more
pressing as we try to meet the growing need for
food worldwide. We’ll likely have two billion more
mouths to feed by mid-century—more than nine
billion people. But sheer population growth isn’tthe
only reason we’ll need more food. The spread of
prosperity across the world, especially in China
and India, is driving an increased demand for
meat, eggs, and dairy, boosting pressure to grow
more corn and soybeans to feed more cattle, pigs,
and chickens. If these trends continue, the double
whammy
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