Top 5 On the Go: Thursday August 13

Whether you're on your way home from work or just relaxing on the couch, here are the most important stories you need to know now.

1. El Niño could be the most powerful ever recorded
Following the release of a new report, climatologists on Thursday said this year's El Niño could bring "extreme rainfall" to drought-stricken California.

2. Scores killed, hundreds injured in China port blast
Two huge explosions tore through a Chinese port city, killing at least 50 people and injuring 700 others, state media and officials said Thursday.

3. ISIS may have gotten a hold of chemical weapons
A report on Thursday said the U.S. believes ISIS militants used chemical weapons in an attack on Kurdish forces in Iraq earlier this week -- it's the first indication that the extremist group has obtained banned chemical weapons.

4. Chinese pollution linked to alarming number of deaths
A new study released on Thursday found that China's air pollution is killing about 4,000 people a day and accounts for 1 in 6 premature deaths in the country.

5. Clinton email scandal spreads to aides
Hillary Clinton's email scandal deepened Thursday after a judge ordered two of her former aides to preserve their records and not delete emails from Clinton's time as secretary of state.

For more on these stories check out AOL.com now.