Sentences with phrase «especially during the last ice age»
More than once did very early man face extinction, «especially during the last ice age,» says the documentary.
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Walter Starck noted that if only humans really were able to heat the globe, «and it helps to prevent another ice age, this would be the most fortunate thing that has happened to our species since we barely escaped extinction from an especially cold period during the last ice age some 75,000 years ago.»
Well - documented climate changes during the history of Earth, especially the changes between the last major ice age (20,000 years ago) and the current warm period, imply that the climate sensitivity is near the 3 °C value.