Tagged: gene

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Arctic climate under greenhouse conditions in the Late Cretaceous

New evidence for ice-free summers with intermittent winter sea ice in the Arctic Ocean during the Late Cretaceous – a period of greenhouse conditions – gives a glimpse of how the Arctic is likely to respond to future global warming.

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Post-Darwinian Hedonic Engineering

PEARCE: In maybe three or four decades or so, we’ll be choosing such traits as the average hedonic set point of our children. Over time, I think allelic combinations [suites of variant copies of mission-critical genes] that leave their bearers predisposed to unpleasant states of consciousness — unpleasant states that were genetically adaptive in our ancestral environment — will be weeded out of the gene pool.