Environmental problems

The main environmental problem discussed in Spain is, of course, animal rights.
It is clear that other issues like pollution, waste or global warming are of utmost importance.
The reason why animal rights are discussed more than the others issues is because in that this country we have bullfights.
Bullfighting raise passions and hatreds. Moreover, Catalonia, a region of Spain, after various protest campaigns, have has banned bullfighting in its territory.
In conclusion, even though global warming is a real and an imminent problem, the topic most discussed area for by the general public is definitely animals.

Environmental problems

The main environmental problem discussed in Spain is, of course, animal rights.
It is clear that other issues like pollution, waste or global warming are utmost importance.
The reason why animal rights are discussed more than the others issues is because in that country we have bullfights.
Bullfighting raise passions and hatreds. Moreover, Catalonia, a region of Spain, after various protest campaigns, have banned bullfighting in its territory.
In conclusion, even though global warming is a real and an inminent problem, the most discussed area for the general public is definitely animals.

Environmental problems

The main environmental problem discussed in Spain is, of course, animal rights. 
It is clear that other issues like pollution, waste or global warming are  of the utmost importance. 
The reason why animal rights are discussed more than the others issues is because in that country we have bullfights. 
Bullfighting raise passions and hatreds. Moreover, Catalonia, a region of Spain, after various protest campaigns, have  has (1) banned bullfighting in its territory. 
In conclusion, even though global warming is a real and an inminent problem, the most discussed area for the general public is definitely animals rights.

(1) the verb needs to agree with the singular noun 'Catalonia'

Excellent piece of work!