Who knows, maybe you never heard about the Pacific Garbage Patch before. If not, then you definitely should watch the videos I will post over the next few days.
This patch is often referred as the "Pacific Plastic Soup". It is a huge area in the Pacific Ocean, twice the size of Texas, literred with plastic. All sorts of plastic. Plastic, which is non biodegradable. The impact on the nature is huge, and we can even not yet imagine, what the impact in the future on our humans will be.
So take your time, and watch. If you like it, then spread the message via Twitter, Facebook or other social media. And next time at the supermarket, consider to say (when they ask you if you'd like to get a plastic bag) "Thank you, not required. We already have too many plastic bags at home!". And watch then the people's reaction ;-)
Video 5: Two generations ago, they thought plastic is the best thing which could happen to the mankind. Interesting, to watch this from the retroperspective.