Word: alienates
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Dates: during 1970-1970
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...adding just one alien component to a delicate balance, man sometimes triggers a series of dangerous changes. Nature immediately tries to restore the balance?and often overreacts. When farmers wipe out one pest with powerful chemicals, they may soon find their crops afflicted with six pests that are resistant to the chemicals. Worse, the impact of a pesticide like DDT can be vastly magnified in food chains. Thus DDT kills insect-eating birds that normally control the pests that now destroy the farmers' crops. The "domino theory" is clearly applicable to the environment...
More than a quarter of the country's 8,000,000 inhabitants have been ordered by the government to leave. They are Africans from other countries, many of whom have lived and worked in Ghana under loose alien status for decades. They include nearly 1,000,000 Nigerians, 186,000 Upper Voltans and 196,000 Togolese, who make their living mostly as small traders, unskilled industrial workers, miners and farm laborers. Last week police began arresting those without residence permits. Some 900,000 have already fled back to their homelands. Hundreds of thousands more are waiting to follow. Some...