In 2010，six people made history when they sailed （航行） across the Pacific Ocean in a boat.Why was this special？Because the boat was made from 12，500 used plastic （塑料的） bottles，and its name was Plastiki.
The journey wasn't easy.They took 128 days to sail 9，000 miles across the ocean from California，USA to Australia.During this time，they lived on the boat，ate food from cans and took showers in sea water.So why did they do it？Because they wanted to make people realize the problem of plastic waste.
The Plastiki program was started by David de Rothschild.In 2006，he read about plastic problem in the seas and oceans，and learnt that one plastic bottle lasts for 450 years!
Plastic waste causes 80% of ocean problems，kills a million seabirds and 100，000 fish and other sea animals.Many people think that this plastic waste comes from ships，but they're wrong.The amazing fact is that 80% of the plastic in the oceans is made of the rubbish we drop in our streets，parks and beaches.
The easiest way to protect the ocean is to stop using plastic shopping bags and disposable（一次性的） water bottles.The great thing is that now millions of people are learning from Plastiki in their homes，schools and offices.
As David de Rothschild said，"We aren't scientists，we're common people.We want to show that if we work together，we can do something".
