Sharks become more aggressive because of global warming

Warmer weather creates an ideal temperature for sharks, and high salinity also increases prey. This makes them more aggressive and "bloody".

The global warming makes the shark more aggressive

An expert claims that a series of recent shark attacks in North Carolina could be traced in part to global warming .

Warmer weather not only makes the shark move north, but also makes the number of people going to the sea increase. Along with other factors such as high salinity as well as a growing number of 'bait fish ', this is believed to create an "ideal storm " of conditions for shark attacks.

Seven people were attacked by sharks recently in North Carolina (illustration of tiger shark).An expert has stated that, partly due to global warming.Along with other factors, it creates an "ideal storm" of conditions.

From 1905 to 2014, there were only 55 attacks of sharks reported in North Carolina.

But this year there have been 7 shark attacks in the state, 6 of them occurred in June and 1 case happened yesterday.

In the recent attack, around noon on Ocracoke Island , a 68-year-old man was seen with many wounds on his chest, legs, hips and both hands when he tried to fight a shark at Deep water to the waist.

In the National Geographic speech, George Burgess - director of the International Human Assault shark program (ISAF) at the Florida Museum of Natural History, said global warming could is a factor in increasing the number of shark attacks.

"It is clear that global climate change is a reality in progress and that it has led to warming temperatures in certain places at certain times," Burgess said .

Shark attacks are more likely to occur when water reaches more than 27 ° C (80 ° F), the ideal temperature for shark species, which attracts them from the south.

Warmer weather has also led many people to the beaches, increasing the risk of encountering sharks.

Several other theories have been proposed, explaining the increase in shark attacks. For example, some people argue that catching fish sharks that take place at the pier near public beaches can also attract them.

Between 1905 and 2014, only 55 attacks of sharks were recorded in North Carolina.However, this year, there have been 7 attacks in the state, 6 of which took place in June and 1 happened yesterday.Illustration of 68-year-old man in shark attack yesterday

Mark Levine, executive director of the Shark Research Institute in New Jersey, told ABC News that catching sharks is also partly responsible. He said: " If we feed bears right here in Yellowstone, people will scream".

Sharks also like saltwater , and recent droughts in North Carolina cause less rainfall, increasing the salinity of the sea.

Last month, NASA released new data showing changes in temperature and precipitation worldwide by 2100. This map, through aggregate data, displays the daily maximum temperature in July according to the The prospect of predicting the level of carbon dioxide in the atmosphere will reach 935 parts per million

Also reported off the coast of North Carolina, it is found that this sea contains a large number of shark favorite foods, called sardines . Sharks often chase a long way to hunt for their favorite food.

According to Burgess, it is likely that the top factors play a role in creating an "ideal storm " for shark attacks.