ILLUMINATED VATICAN: The Vatican hosted an ambitious architectural light show called Fiat Lux: Illuminating Our Common Home in support of the ongoing climate talks in Paris. The images were projected onto the façade of St. Peter's Basilica.

HITS LIKE A BRICK:A Chinese artist created a brick out of smog to draw attention to the country’s air pollution problems. It took 100 days of collecting air with an industrial 1000-watt vacuum in order to make the brick.

FASTER AND FASTER: A new study concludes that Greenland's glaciers have shrunk twice as fast in the past century than they have in any previous time period in the past 9,500 years.

SLOPPY SECONDS: A team of scientists discovered that fish in a Mediterranean sea trench got between five and six percent of their food from human-derived food scraps. The fish dined on pieces of beef, lamb, and grapes that were likely dropped from passing ships.

POSITIVE BLIP: Researchers tracking the world's carbon footprint reported that 2015 will be the first year that carbon emissions dropped while the world economy grew.