World's largest MPA declared in Antarctica

Read this piece of news related to the Ross Sea, a recently declared marine protected area in Antarctica. 

Please, answer these questions after reading this piece of news:
1. How large is this area if compared with Spain?
2. What is this area protected from?
3. Why is the Ross Sea so important for animal life? 
4. Will fishing be possible in a future?
5. How did Lewis Pugh draw attention to the Ross Sea?
6. Who is Philippa Ross?