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Enduring Climate Myths

Enduring Climate Myths. Climate models can’t provide useful information about the real world. Models can provide useful information, though not exact. Uncertainties: climate and future economies Nevertheless – they unconditionally predict a warmer world. Enduring Climate Myths.

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Enduring Climate Myths

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  1. Enduring Climate Myths • Climate models can’t provide useful information about the real world. • Models can provide useful information, though not exact. • Uncertainties: climate and future economies • Nevertheless – they unconditionally predict a warmer world.

  2. Enduring Climate Myths • Global warming stopped 10 years ago. • Scale of (10 years) is too short for climate. • Still, last decade was the warmest on record, despite a slower rate of change

  3. Enduring Climate Myths • Temperatures were higher in pre-industrial times. • Although warmer periods occurred in the distant past – these were under different orbital and geological conditions • The past 50 years was warmer than any other half century in more than 1000 years • Warm conditions in the past do not disprove current anthropogenic forcing

  4. Enduring Climate Myths • Temperatures records taken in the lower atmosphere indicate that the globe is not warming • Calibration issues with satellite temperature retrievals resolved

  5. Enduring Climate Myths • A few degrees of warming are not a big deal • Recent ice ages Earth was only a few degrees colder (on average) than today • Rapid change does not allow for easy adaptation

  6. Enduring Climate Myths • Measured increase in temperature reflect growth of cities around weather stations rather than global warming • Some of the greatest rates and changes in temperature are occurring in areas with little to no human population (Arctic) • Urban heat-island effect accounted for in simulations

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