Earth Changes
And scientists say this year's dead zone is the biggest they've recorded since mapping began in 1985.
The National Oceanic and Atmospheric Administration announced this week that the Gulf dead zone measured in at more than 8,700 square miles — an area roughly the size of New Jersey.
Dead zones can occur naturally. But researchers say the Gulf's problem is mainly caused by nutrient pollution from agriculture.
Sources

The British Geological Survey (BGS) recorded the magnitude 3.8 tremor in the Moidart area just before 3.45pm
The British Geological Survey (BGS) recorded the magnitude 3.8 tremor in the Moidart area just before 3.45pm.
It was the biggest earthquake in the region since a magnitude 4.1 quake near Oban in September 1986, officials noted.
On the latest event, the BGS stated: 'This earthquake was felt widely across the west of Scotland.'
People in the area shared their experience of the rumble on Twitter.
One wrote: 'Think I just experienced a minor earthquake, here on Ardnamurchan. West coast of Scotland. Anyone else feel it, my kitchen rumbled.'
Italy, Switzerland, Hungary, Poland, Romania, Bosnia-Herzegovina, Montenegro, Croatia, Slovenia, and Serbia are on red alert, European forecast network Meteoalarm said on Saturday.
Florence's famous Uffizi Gallery was temporarily closed on Friday after the museum's air conditioning system broke down, ANSA news agency reported.
Greece, Spain, Bulgaria, France, Macedonia, Slovakia, and Moldova have issued orange alerts to stress the potential for worsening weather conditions.
At least two people have died from the heat, one in Romania and one in Poland, Reuters reported, adding that many more have been taken to the hospital for sunstroke.
"In two hours of my shift today I saw four people fainting on the street and complaining of heat exhaustion," a traffic warden told Reuters in Belgrade.
A helicopter rescue team hoisted one man to safety as muddy water flowed down the roadway, said Los Angeles County Fire Inspector Gustavo Medina. Aerial footage showed him sitting on top of his black truck, water up to its wheels, before the rescue.
Some people were stuck at a pharmacy because of extreme flooding, while others reported being trapped in their cars in knee-high water.
"All the roadways look like a lake," said Sheriff's Lt. Anthony Gunn, warning commuters to avoid attempting to drive through moving water. "If possible, [do] not drive anywhere at this point."
The freaky, fast-moving cloud formation packed powerful wind gusts.
KSBW Facebook fan Ingrid Schmidt-Wagnaar said, "All of a sudden the trees were bending. Waves of the fog (were) wafting through the garden and it got a bit chilly, whereas it was a balmy 85 degree just moments ago. It was over in less than 3 minutes, and blue sky was again upon us, and it got warm again. Nature's phenomenon."
Santa Cruz resident Ian Babcock was the first to describe it as a "fognado."
About 2 p.m., a person was reported missing in the wash near Siegel Suites at 3625 Boulder Highway. Another person was rescued and taken to a hospital with unknown injuries, Fire Department spokesman Jeff Buchanan said.
Six people were rescued from the wash behind The Linq Hotel about 1:30 p.m., Buchanan said. One of those people was missing for more than an hour before being rescued by firefighters.
And lucky for the rest of us, instead of scampering back to the safety of his USPS truck, the mailman — 38-year-old Bergen Beach resident Howie Weiss — tapped into his inner National Geographic documentarian and Facebook Lived this epic collision of city grid and nature's wrath.
"I've been in this station for years and seen my flooding," Weiss told Patch, "but nothing like this. It literally took me a few seconds to comprehend how much rain that was."
Behold, the mailman's masterpiece, shot around 9 a.m. Friday, right after a rash of flash floods across NYC:
Piecing together the evidence, forest officials believe that the incident happened when mahout Ranjeet Kumar (37) went inside the enclosure to apply medicine on another elephant, Sundar, on Thursday night. For some reason, he must have approached Mohan, which was in another part of the enclosure. Another elephant, called Gajraj, was near Mohan. It was raining heavily and Mohan may have become nervous, possibly due to the thunder and lightning, and attacked the mahout.
Vacaville suffered through high temperatures of 108 degrees on Thursday, according to the National Weather Service. By 8 p.m., temperatures had dropped down to the low 80s - like what you'd usually expect to happen when the sun goes down.
However, after bottoming out at 80, temperatures actually started to shoot up as the night progressed.
By midnight, temperatures had spiked at 95 degrees.
NWS says the bizarre temperature spike is due to a rare event called a "heat burst."
Much like downburst, a heat burst is usually associated with decaying thunderstorms. Heat bursts are basically the inverse of a downburst - instead of cool and moist air, hot and dry air is rushed toward the surface.














Comment: Flash flood traps drivers in Acton, California; 1.5 inches of rain in just half an hour