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<jats:p>New research suggests that chronic loneliness can cause changes in the cardiovascular, immune, and nervous systems.</jats:p>

<jats:p>The world's earliest large settlements may owe their existence as much to the swamps of southern Iraq as to irrigation and agriculture.</jats:p>

<jats:p>Fifty-five million years ago, Siletzia arrived on North American shores with nary a bump. But the 500-kilometer-wide chunk of drifting oceanic plate had far-reaching geologic effects across the continent's western third, according to a presentation at the meeting.</jats:p>

<jats:p>Fifty-five million years ago, carbon dioxide gushed into the atmosphere over as little as a millennium, acidifying the ocean and scorching the world of the Eocene epoch with a 5ËšC greenhouse warming. In one presentation, earth systems modelers suggested an ocean source for all that carbon dioxide.</jats:p>

<jats:p>Glaciers are suddenly galloping to the sea in Greenland and the "weak underbelly" of Antarctic ice is beginning to give way, but a couple of glaciologists at the meeting say that at least in the short term, the situation, while bad, is not always quite as bad as it looks.</jats:p>

<jats:p> The Gonzo Scientist uses "culturomics"—a new field of study, launched in a recent <jats:italic>Science</jats:italic> paper, that quantitatively explores massive data sets of digitized culture—to create a Science Hall of Fame. </jats:p>

<jats:p>Snapshots from the meeting include new evidence showing that the Sierra Nevada mountains of east-central California are rising at the rate of about 1 millimeter per year and geophysical quirks that worsened the air-traffic disruption caused by the eruption of the Eyjafjallajökull volcano.</jats:p>