Example sentences of "have devastating effects " in BNC.

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1 One reason for the Groningen 's demise was the government 's policy of concentrating on the major pied breeds and closing the herdbooks of minors such as the Groningen , Lakenvelder and Witrik so that they were unable to give evidence of registered purebred bulls when new bull licensing laws came into force 20 years later — a move which has had devastating effects on minor breeds in other countries where similar laws were introduced .
2 Fires set to control weeds on degraded pastures also spread , particularly to selectively logged areas as in Para , Brazil , as the gaps left have tracks connecting them and plenty of fuel : such have had devastating effects in Borneo during seasonal droughts ( see section 2.2.2 ) .
3 Bereavement can have devastating effects on our defensive cells , but even something as minor as taking an exam can make us more vulnerable to infection .
4 Television , for the NVALA , is a uniquely powerful medium , and one therefore that can have devastating effects on the social fabric if it is not checked .
5 I am in favour of that , but that is different from setting up international agencies whose legislation and ideas may have devastating effects on industries in western countries while leaving eastern countries to carry on processes over which the rest of us have no control .
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