Space ship Earth has a new pilot

Outside of my professional life as a physicist, I have not seen any visceral evidence that makes me believe in climate change. One Indian summer, one hurricane, or one hot day is not enough evidence to convince me the climate is changing.

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According to the National Aeronautics and Space Administration (NASA), the average temperature of the Earth has increased 1 degree Fahrenheit over the last 100 years. I have neither lived for a century, nor do I have the ability to sense a one-degree temperature increase.

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