Question

what is the global concern raised by Mr.Lester brown that threaten the very existence of man​

Answer 1

Explanation:

Lester R. Brown explains how the earth's biological systems - fisheries, forests, grasslands, and croplands, are in danger.

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Answer 2

The global concern raised by Mr.Lester brown that threatens the very existence of man​ is the damaging of the Earth's global economic system.

• The question is in reference to the chapter 'The Ailing Planet: the Green Movement’s Role'.
• Mr. Lester R. Brown in his book 'The Global Economic Prospect' says that the Earth’s principal biological systems form the foundation of the global economic system.
• These biological systems include fisheries, forests, grasslands, and croplands.

• These resources supply our food, provide most of the raw materials for industries.
• The overexploitation of these resources by humans has resulted in the disappearance of forests and the conversion of grasslands into barren wetlands.
• Over-fishing and clearance of forests in order to procure firewood has also posed a threat to the wildlife living there.