PD 4: Greatest Threat


Please respond to the following in 200-600 words
What do you think poses the single greatest threat to the continued existence of life on earth? For full credit please refer to a least one authoritative online source. You may also want to briefly explain how the threat you explain underwrites or is interconnected with other threats.


As long as you post your response to Canvas on or before the due date, you will earn full points per document. Remember these activities are process documents that develop skills we will use in class and in the final paper. The documents also provide an opportunity for invention and revision.

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