Sentences with phrase «past ice ages resulted»

Not exact matches

The resulting lower atmospheric CO2, the argument goes, would mean lower temperatures, suggesting that the mechanism was at least partially responsible for triggering past ice ages.

This also explains why, as you point out, CO2 levels have in the past been high during an ice age (although never at 5000ppm — the late - Ordovician would have been a contender but this recent paper — ttp: / / geology.gsapubs.org/content/37/10/951.abstract — demonstrates that CO2 consumption increased during the mid-Ordovician as a result of continental weathering, however levels were held up by volcanic outgassing.

Their two main results are a confirmation that current global surface temperatures are hotter than at any time in the past 1,400 years (the general «hockey stick» shape, as shown in Figure 1), and that while the Medieval Warm Period (MWP) and Little Ice Age (LIA) are clearly visible events in their reconstruction, they were not globally synchronized events.