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Cape Town grew rapidly during the 20th century: By the 1960s the population reached half a million, In the late 1980s discriminatory legislation was relaxed and a large influx of rural people moved in and started informal settlements on open ground. By 1994 it had increased to 2.2 million,<ref name="Cowling et al 1996" /> and by 2020 it was over 4 million. This rapid growth increased pressures on the natural ecosystems, particularly where land supporting natural ecosystems was occupied.
In 1996 about 37% of the region was in use for agriculture and urbanization and 44% of the remaining area of natural vegetation had been invaded by alien plants. However, about 64% of the peninsula was within
==Notes==
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