Half of All Species Are on the Move—And We’re Feeling It – National Geographic
Agriculture is feeling the effects too, as crop pests expand their range. Diamondback moths, which ravage the cabbages, kale, and cauliflower grown by poor urban farmers, are spreading in South Africa. In Latin America, coffee plant funguses and pests are appearing in new areas, threatening a key industry. The same is happening to French olives, wine grapes, and lavender. And in the United States, scientists suspect climate change has promoted the increasingly rapid spread of Johnson grass, a highly invasive weed that reduces yields for legumes, corn, sorghum, and soybean.