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What's causing global warming? duration 1 minute 23 seconds What's causing global warming? What's causing global warming?	What's causing global warming? The science on the human contribution to modern… filippelli +22 More From Filippelli Institute Group 0 likes 20 plays 0
The Wilderness Idea duration 58 minutes 25 seconds The Wilderness Idea The Wilderness Idea	The Wilderness Idea wilderness +19 More From Derrick Beckner 0 likes 36 plays 0

What's causing global warming?