Marine life “suffocate” from greenhouse gases
Greenhouse gas emissions in the coming decades could have a significant impact on oceanic life forms, with such dire predictions were made by the expert on marine biology Michael Beeman from the University of California in Merced. – Concern about this issue in informed circles is growing because human activity is very rapidly changes the pH (acidity) in the oceans. And although we don’t know what will be the final effect of changing the nitrogen cycle, the experiments are being conducted worldwide, and based on them we can assume that the effect will be global.
According to him, the growth of carbon dioxide emissions, increased by the burning of fossil fuels and other human activity increases the acidity of water, which, in turn, significantly alters the nitrogen cycle in the sea. And because nitrogen is an essential nutrient for living organisms, although, as it turned out recently, some life forms can adapt to other elements, eventually the process will affect all forms of marine life, reports innovanews .
During his research Dr. Beman lowered the pH of water at six different sites in the Atlantic and Pacific oceans. In each case, when pH was lowered, and decreased generation of oxidized forms of nitrogen, which usually uses phytoplankton and drugability. This nitrogen is produced through the oxidation of ammonia in sea water by microorganisms. According to the scientist, these results can be used to assess the potential impact of oxidation on the nitrogen cycle in the sea and marine life forms in General. But the observed effects require additional research.
DOSSIER OF “KP”
What else can happen to the seas on the planet
In place of the Mediterranean sea 6 million years ago, the desert stretched. The sea dried up, and on the vast territory there are only hot Sands and salt lakes. Scientists do not exclude that in the future this could happen again.
How did this happen? The Mediterranean sea connects with the Atlantic ocean only by the narrow of Gibraltar, Strait. As you know, the earth’s crust consists of plates that are in constant motion. And when the North African continental plate collided with the Asian plate nearby, this caused the rise of the bottom in the Strait of Gibraltar. Just a few thousand years the sea is completely dry. There was a migration of many animal species from Africa to Europe. Occurrence on site the sea of the desert caused significant climate change in both continents: in the North of Switzerland began to grow palm trees, forests of Central Europe emerged in Savannah, and the river that flowed into the Mediterranean sea, instantly dried up.
About 5 million years ago the bottom fell Strait, and “gateway” to the sea was reopened. Waters of the Atlantic, like a giant waterfall (5 times more than Niagara), rushed into the desert. Presumably it took about 100 years before the sea water rose to the current level.
And the fate of the Mediterranean sea is waiting, apparently, and Dead. Experts predict the drying by 2050. Coastline today receding a meter a year, and in some places the bottom was already exposed per kilometer. However, this is not the fault of nature, and people.
The degradation of the Dead sea began in the 1960s when Israel, Jordan and Syria began to divert water from the Jordan river. Over the past decades, these countries have allowed for agricultural and industrial needs 95% of the river flow. Israel alone takes 60%. Not long ago, Jordan decided alone to build a pipeline to pump water from red sea to Dead prevented at two billion dollars. But this little project. But because of political tensions in the middle East to take necessary measures to rescue the world’s most famous salt lake impossible.
IN THE MEANTIME
THOUSANDS ARE DYING CRABS
At the end of last week on the beaches of England the waves washed 25 000 dead crabs. Researchers are still in the dark as to why they died. Trying to identify crabs have some deadly disease or damage is found. And yet adhere to the assumption that the extinction is caused by changing the temperature of the water near the shore. The fact that this phenomenon has been observed for the third year in a row.
So, last year on the beach was thrown up to 40 000 crabs. And then the official version was that the cause of their death was the lack of snow on the beaches. The fact that the melted snow has cooled the water near the shore. And at this time of year crustaceans closer to the beaches in search of food. And in the icy water they died from hypothermia. Only this time not to explain the fact that along with dead crabs were found on the shore and a large number of sea stars. They beaches are not fed by.