How do plastic bags affect LeatherBack turtles?

Plastic Bags are used to carry home shopping. When they are finished with they end up in our rubbish bins which is taken to the landfill sites. Some rubbish is carelessly dumped by roadsides in fields or on beaches and ends up in the sea.
Plastic bags are made from oil which takes hundreds of years to decompose (dissolve)!
Plastic bags left on beaches end up in the sea which causes marine pollution (rubbish in the sea). Ocean currents carry plastic bags to feeding grounds. Plastic bag look like jelly fish the water which are the main source of food for Leather back turtles. The turtles eat plastic bags because they think they are their food which results in the turtle stomach becoming blocked. Consequently turtles starve to death. Therefore by 2030 Leather Back turtles will be extint!