Task: Question Answering
Input (English): Background Paragraph: During May, June, and July, the Northern Hemisphere is exposed to more direct sunlight because the hemisphere faces the Sun. The same is true of the Southern Hemisphere in November, December, and January. It is Earth's axial tilt that causes the Sun to be higher in the sky during the summer months, which increases the solar flux. However, due to seasonal lag, June, July, and August are the warmest months in the Northern Hemisphere while December, January, and February are the warmest months in the Southern Hemisphere. 
Story: In the year 1630 during the month of January Captain Cook began his voyage from the port of Calais in Europe, which is in the Northern Hemisphere. His intention was 
to find the mythical land in the Southern Hemisphere. After about eleven months of sailing, in December 1630, he reached Australia, which is indeed in the Southern Hemisphere. Thinking he finally reached the mythical 
land, he commenced his return voyage to Europe on June, 
1631, He reached Europe in the middle of the following year on July, 1632. 
Question: Did Europe exprience increased or decreased solar flux when Captain Cook reached Australia in 1630?
Output (English): decreased.