How often do whales clean their ears? Well, never. And so, year after year, their ear wax builds up, layer upon layer. According to a study published Monday, these columns of ear wax contain a record of chemical pollution in the oceans.
The study used the ear wax extracted from the carcass of a blue whale that washed ashore on a California beach back in 2007. Scientists at the Santa Barbara Museum of Natural History collected the wax from inside the skull of the dead whale and preserved it. The column of wax was almost a foot long.
These were the words uttered by painter Jean-Michel Basquiat, who was deeply shaken after he heard the story of a black graffiti artist who was beaten to death by New York City police. Seeing his own life reflected in the death of a fellow artist, Basquiat went on to create Defacement (The Death of Michael Stewart),not only to commemorate the young man's death, but also to challenge the state-sanctioned brutality that men of color could face for pursuing their art in public spaces.
Originally published on Tue September 17, 2013 10:04 am
Aaron Alexis, the 34-year-old man believed responsible for Monday's shooting rampage that killed 12 people at the Washington Navy Yard, was a former full-time Navy reservist who had obtained a concealed-carry permit in Texas and was arrested three years ago for illegally discharging a weapon.
From the standpoint of global warming, burning natural gas can be better than burning coal, a study published this week suggests.
This is a contentious issue among people who are opposed to the natural gas drilling practice known as fracking. That technique involves injecting water, sand and chemicals into wells to release far more gas than conventional drilling can. Opponents of fracking have been concerned not only about local environmental issues, but also about the potential for methane leaks to make global warming worse.
A line of men in black rain boots push trash carts through the alleys of Lahore, Pakistan. They stop at an open sewer along a neighborhood street and start to pull up shoes, bricks, plates and any other trash that might block the flow of wastewater.
Standing water is a prime breeding ground for mosquitoes. And the local government in Lahore is on a focused mission: Stop the spread of dengue fever by mosquitoes.