求翻译：这个具有历史意义的转捩点，再次引起了节育、保护天然资源、减少耗用资源这些由来已久的争辩，也令很多人疑问地球能否养活这么多人。是什么意思？

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This historic turning point, once again aroused birth control, and protection of natural resources, reduce resource consumption, these long-standing controversy also make a lot of people doubt the earth will be able to feed so many people.

This has the historical significance connection, caused the birth control, the protection natural resources, the reduction once more has consumed resources these long-standing arguing, also whether made the very many human of question Earth to support such many people.

This historic turning point, again due to birth control, protection of natural resources, reduce consumption of resources which has a long history of arguing has made many people doubt the earth can support so many people.

This historic turning point, again due to birth control, protection of natural resources, reduce consumption of resources which has a long history of arguing has made many people doubt the earth can support so many people.