Glossary
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| Term | Definition |
|---|---|
| Transient climate response (TCR) | The amount of global warming at the time atmospheric carbon dioxide doubles when it rises gradually by 1 percent a year, before the climate fully adjusts. It is lower than equilibrium climate sensitivity. Climate Change |
| Transitional Fossil | A fossil showing features intermediate between an ancestral group and its descendants, such as Tiktaalik (fish to tetrapod) or Archaeopteryx (dinosaur to bird). Evolution |
| Tree rings | Annual growth layers in tree trunks. Their width and density record past temperature and rainfall, making them a key source of paleoclimate data. Climate Change |
| Trend | A general direction in which data change over time or across conditions. Science General |
| Triangulation | Utilizing a wide variety of different sources to verify a specific piece of information. Science General |
| Tribal Epistemology | A modern political phenomenon where people evaluate information based on whether it aligns with their in-group's values rather than objective evidence. Antiscience |
| Troposphere | The lowest part of the atmosphere from the surface to about 10 km in altitude in mid-latitudes (ranging from 9 km in high latitudes to 16 km in the tropics on average) where clouds and "weather" phenomena occur. Climate Change |
| Truncated axis | A graph axis that does not start at zero, which can exaggerate small differences. Science Literacy |
| Truth Sandwich | A correction technique: state the truth first, briefly describe the falsehood, then return to the truth, so the myth is not the most memorable part. Antiscience |
| Tu quoque | Deflecting criticism by accusing the critic of the same behavior, Latin for 'you too'. It does not show the original criticism is wrong. Science Literacy |