"Dead zones" refers to areas in water bodies, usually oceans or lakes, where there is very little or no oxygen. This lack of oxygen makes it difficult for plants and animals to survive there, resulting in a decline or absence of marine life.
Full definition
Around the world there are more than 400 current
dead zones in oceans and lakes, where water contains so little oxygen that aquatic life can't survive.
While already threatened by ocean warming or acidification, coral reefs around the world are facing another adversity in the form
of dead zones.
Scientists say that climate change is likely to markedly increase the number of
ocean dead zones around the world.
Warming waters are decreasing oxygen in the oceans, creating
dead zones for marine plants and animals.
For example, fertilizer runoff from conventional agriculture is a major culprit in
creating dead zones — low oxygen areas in the oceans where marine life can not survive.
Point in fact, scientists have discovered more than 400
marine dead zones in the modern oceans.
There's a small
dead zone on - center, but otherwise the steering makes hitting your marks an easy proposition.
Scientists have long known that increasing ocean temperatures can lead to more ocean
dead zones as warmer water holds less oxygen.
It's a comedy that only rarely hits «hilarious» and suffers from too many
dead zones between laughs.
At the same time, disruption of other chemical cycles is turning seas and rivers
into dead zones.
While much research on the effects of shallow
coastal dead zones has been published, little is understood on how this expansion will affect open ocean ecosystems.
The blooms and the related expanding, low
oxygen dead zones now range the entire world ocean.
Some of the areas that used to be
dead zones now allow me to talk on a call without issues.
Dead zones occur throughout the world and persist through the summer until plunging water temperatures — and often hurricanes — mix oxygen back into the depths each fall.
In 2011, scientists reported that these efforts had achieved some success in shrinking the size of the bay's late -
summer dead zones.
Use the whip antenna with the meter to quickly assess indoor signal levels,
identify dead zones and map coverage needs.
There are more than 400
known dead zones worldwide, covering about 1 percent of the area of the continental shelves.
Nothing more but a dry bones, well without water, spiritually
dead zone zombie, walking talking robot.
Other studies have suggested that rapid
dead zone expansion this century will be driven by high levels of marine carbon.
These bacteria can rapidly consume all the available oxygen in a given region of water, giving off carbon dioxide as they do so and creating a
temporary dead zone.
«For the next decade, I predict a doubling in the number of
dead zones unless something is done,» he says.
Today, the site is a
virtual dead zone... as well as bear bones dating back 17,000 years.
We've been in somewhat of a mainstream
gaming dead zone for the past few months.
This service uses your phone's data connection, so it can drop out when you drive through a
cell dead zone.
Your Realtor could be tied up with another client or stuck in traffic in a cell -
phone dead zone.
Of the 12 maps available at launch, many are built around
single dead zones situated before an objective point.
A new analysis of 60 years worth of water quality data, however, suggests that efforts to control the nutrients are leading to smaller and shorter -
lived dead zones.
Dead zones take place at the bottom of a body of water when there isn't sufficient oxygen to sustain marine life.
They learned to add chemicals, but never the consequences, like impacts on groundwater, rivers, and
dead zones in the oceans.
According to previous research, the number
of dead zones has doubled every decade since 1960.
Natural processes, such as the churning of ocean waters, can form
dead zones on their own.
There are ornaments that almost guarantee problems because they
create dead zones, where water is trapped and may become anaerobic.
The
European Dead Zone on Earth is one of the first places you'll visit after the attack, containing new social space The Farm amid a forest and a ruined village.
The fear now is that increasing global temperatures and sea level rises could trigger ever stronger winds and — in turn —
larger dead zones off the coast of Oregon and other states in the near future.
The size of the Gulf of
Mexico dead zone fluctuates annually, but increased precipitation this year amplified runoff.
Experts say such cuts could shrink the so -
called dead zone in the Gulf of Mexico, which becomes inhospitable to wildlife almost every summer.