Word: mi
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...California FIRE WITH FIRE A firefighter uses a flare to light a firebreak as hundreds of blazes crackled across Northern California, scorching about 570 sq. mi. (1,475 sq km) of land and threatening the tourist enclave of Big Sur. With the weather expected to remain dry, officials said some of the wildfires could burn for months. Devastating fires last October caused more than $1 billion in damage...
...microscopic floating plants--love it, feasting on it and taking it out of circulation. The problem is, there are vast regions where the water is iron poor and plankton languish. The amount of iron the plants need and aren't getting is tiny--less than 20 lb. per sq. mi. (3 kg per sq km) by some estimates. If this were pumped as a diluted slurry into the wake of a ship steaming back and forth like a tractor seeding a field, the plankton would bloom and global CO2 levels--in theory--would fall...
...action to reduce the flow of fertilizer into the Mississippi, much of which comes from agricultural sources that aren't covered by the regulations of the Clean Water Act. The ultimate goal is to shrink the size of the dead zone, averaged over five years, to 1,930 sq. mi. or less by 2015 - considerably smaller than the 7,900 sq. mi. the zone reached last year. "This plan has greater accountability and specificity [than 2001]," says Benjamin Grumbles, the EPA's assistant administrator for water. "This is urgent...
Since 1990 the dead zone, which begins in summer and lasts until early fall, has averaged about 6,046 sq. mi. But the threat is growing. A study released last week by scientists from Louisiana State University (LSU) and the Louisiana Universities Marine Consortium estimated that this year's dead zone would be more than 10,000 sq. mi., roughly the size of Massachusetts. But that prediction was made before massive floods hit the Midwest: with the flow of the Mississippi at dangerous levels, and with rains sweeping fertilizer off drowned farms, the dead zone could grow even bigger...
...drive miles and miles to find a grocery store," says Jan Probst, who directs the South Carolina Rural Health Research Center at the University of South Carolina. Indian reservations are often the most extreme example of this rural nutritional isolation. The Pine Ridge reservation is nearly 3,500 sq. mi. (9,000 sq km)--more than half the size of Connecticut--but there are just a handful of stores in the area that sell fresh produce. And with average income well below the poverty line, even Pine Ridge families who have access to the good stuff can't afford...