The correct example of global warming creating a positive feedback is when Ice has a higher albedo than water so replacing ice with water causes the surface to warm.
This refers to the long-term warming of the planet's overall temperature and though this, the warming trend has been going on for a long time and its pace has significantly increased in the last hundred years due to the burning of fossil fuels.
Also, as the earht population has increased, so has the volume of fossil fuels burned.
Hence, the correct example of global warming creating a positive feedback is when Ice has a higher albedo than water so replacing ice with water causes the surface to warm
Therefore, the Option A is correct.
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