Arctic Climate Change and Extinction

I can barely understand the abstract:

The Arctic Ocean is undergoing rapid climatic changes including higher ocean temperatures, reduced sea ice, glacier and Greenland Ice Sheet melting, greater marine productivity, and altered carbon cycling. Until recently, the relationship between climate and Arctic biological systems was poorly known, but this has changed substantially as advances in paleoclimatology, micropaleontology, vertebrate paleontology, and molecular genetics show that Arctic ecosystem history reflects global and regional climatic changes over all timescales and climate states…. Climate-driven biological impacts included large changes in species diversity, primary productivity, species’ geographic range shifts into and out of the Arctic, community restructuring, and possible hybridization, but evidence is not sufficient to determine whether or when major episodes of extinction occurred.

Denial

You and [his son, who’s a doctor] are very big into truth, truth, truth, yes, yes, yes. But denial – respect denial. It’s very important in the human architecture. It’s what we do when we can’t face what the world throws at us. It’s what helps us get up in the morning, until enough mornings pass that we begin to walk upright in the world.
  —Ron Suskind, quoting his friend Max Pluskey

From a talk at Calvin College talking about the story behind his book, Life, Animated.

(Cross-posted from my other blog.)

Zubrin: Mars the Hard Way

Bob Zubrin’s not enamored with NASA’s Mars proposal:

The kindest thing that can be said about this quintuple rendezvous plan is that it is probably the unplanned product of the pathology of bureaucracy, rather than the willful madness of any individual. For a fifth of its cost, NASA could fly five simple direct sample return missions, each of which would have (at least) five times its chance of mission success. So it’s hard to imagine any sane person inventing it on purpose.