You are watching the news on TV and they're talking about an oil spill. Your roommate walks by and sees the pictures. He hasn't heard about this news, so he asks what's going on. You answer him by saying this.
You're visiting a health clinic. Before you see the doctor, the receptionist asks you to complete a form. You've done it but had some trouble with some questions.
You're leading a meeting at work. You've finished talking about the first topic of the meeting. Now you say this to introduce the next topic.