You probably see a lot of things made of plastic, like bottles and bags. What happens when the plastic was thrown away? Scientists say that much of it reaches the oceans in the end, and causes problems for ocean creatures（生物）, like fish and birds.
"Plastic makes ocean creatures in danger, some of them die when they are tangled （被缠绕） in pieces of plastic, and others eat the plastic and die, too." says Allison Schutes of the Ocean Conservancy, a group that protects oceans.
A recent study shows that lots of plastic reaches the oceans each minute. Scientists predict （预言） that by the year 2050, our oceans will have more plastic than fish.
Most scientists say taking out all the plastic that has already in the oceans is impossible. Instead, they say the best way is to stop more plastic from reaching the oceans.
Many groups are taking action. They pick up letter before it reaches the oceans. ▲ , volunteers from the Ocean Conservancy collected more than 16 million pounds of litter last year.
Experts also encourage people to use less plastic. Many cities and towns in some countries have banned plastic bags. Experts also suggest that people should use more reusable bottles and bags.
"These seem like small things," says Schutes, " but they can help to make a big difference. "
