Variations in the amount of oxygen in Earth's atmosphere significantly altered global climate throughout the planet's history. Efforts to reconstruct past climates must include this previously ...

New research shows that naturally occurring climate variations help to explain a long-standing difference between climate models and satellite observations of global warming. Instead, the model-versus ...

The possible effect on climate of variations in the Sun's total power output, or luminosity, has interested the scientific and financial communities since at least William Herschel's ...

In Moisés Kaufman’s 33 Variations, Jane Fonda plays an American musicologist—a Beethoven specialist—who decides to go ahead with a research trip to Bonn, Germany, even though she’s just been diagnosed ...