A Plastic Ocean is a new documentary that looks at the problems that are caused when plastic waste goes into the sea. Watch the trailer and find out more about how plastic can be dangerous to sea animals and human health.
Did you know that tonnes of perfectly good food is thrown away every day in some countries? When some people don't have enough food to eat it seems crazy that so much food is wasted. Watch this video and learn about the work that Tristram Stuart is doing to try and change this situation.
One Direction are working on a new project called Action1D. They want young people to send them messages that they will put together to present to world leaders at events this year. Learn more about Action1D in this video.