Global warming!!!!
global warming.
Answer:
I believe they are called hydrologists.
Explanation:
La Ramblas is the central boulevard in Barcelona, and it is also the one main tourist's attraction in the city. It is approximately 1.2 kilometers long with Port Vell at the Southernmost end and Placa Catalunya at the Northernmost end. It can also be divided into seedy and non-seedy areas. Attraction in Ramblas includes live performances, human statue art, an artist that draw your portrait or caricature and the Erotica Museum.
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