GISTEMP, NASA’s global temperature analysis, takes in millions of observations from instruments on weather stations, ships and ocean buoys, and Antarctic research stations, to determine how much warmer or cooler Earth is on average from year to year. Stretching back to 1880, NASA’s record shows a clear warming trend.
How We Know What We Know about Climate Change
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|---|---|
| Publish Date | |
| Run Time | 00:08:40 |
| Topic | Earth |
| Genre | |
| Video Quality | HD |
| Rating | TV-G |
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