JELLYFISH: a worrying invasion.

For some years now the jellyfish are causing serious damage to fishing and to industrial activities. This is happening not only in the Mediterranean Sea, but also in the Irish Sea and in the Atlantic Ocean, because of the global warming. 

In 2013 they have killed 20.000 salmons in the plants of Marine Havest, off the coast of the Irish island of Clare. Other similar episodes have occurred along the coasts of Tunisia, Spain, Normandy, Catalonia, Norway and Chile. 

This problem is not so known at the moment, but it can't be underestimated. Jellyfish cause trouble to the fish farms, but also in the open seas, where they can choke the boat motors and pile up in the nets, reducing the fish and making it hard to select it. 

Whose is the blame for all of this? 

Of course global warming is playing a fundamental role: in the Mediterranean Sea there are species that once couldn't be found there, like puffers and barracudas and the man exploiting too much the marine ecosystems reduces the competition for food, so jellyfish thrive more than the fish species. 

Furthermore, they resist well to the effects of pollution and to the acidification of the oceans. 

They threaten to wipe out marine biodiversity. 

This is...an inconvenient truth.

"An inconvenient truth" (2006) is a documentary film directed by Davis Guggenheim about former US Vice President Al Gore's campaign to educate citizens about global warming. 
It is very well made and impressed me a lot. And it also made me think "what if Al Gore had won the elections 2000..? Would this world be as it is today..?". Well, things went like that so it is useless to "wonder if...". 

Anyway, this documentary shows scientific evidence on global warming and on the effects it has today and the ones that it's going to have in a (awfully near) future if we don't reverse course. 
This film had a great impact on the public opinion: 66% of the people who had seen the film said it had changed their mind and 74% said they had changed some of their habits because of seeing it. 
In 2010 an initiative called "Inconvenient truth" was launched: it is built on the belief that young people can help solving climate problems. 

There would be so many things to say about this documentary...but YOU HAVE TO WATCH IT. ABSOLUTELY. It could really change the way you look at all the environmental problems. 
"An inconvenient truth" won two Academy Awards for Best Documentary Feature and Best Original Song. It grossed $ 24 million in the U.S.and $ 26 million in the foreign box office, becoming the 9th highest grossing documentary film to date in the United States. 
It has raised international public awareness and it has reenergized the environmental movement. 

C'mon! Now go watch it!