Question

The theory of global warming states that the average temperature of the earth has been increasing over time. This theory will be most strongly affected by scientific studies that

Answer 1

It would be most affected by a scientific study that proved that world temperatures and/or climates where actually decreasing or are the lowest they've been.

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Answer 2

The theory of global warming states that the average temperature of the earth has been increasing over time. This theory will be most strongly affected by scientific studies that reveal how the earth's temperature has fluctuated in the past.