Skipping Rocks Lab has designed a water container that is significantly more eco-friendly than plastic water bottles. The process only costs about one penny per capsule; water is frozen and wrapped in a combination of calcium chloride and sodium alginate, both of which are found in seaweed. This new water container is an exciting alternative to plastics, which require natural gas to make and are not biodegradable. The biggest potential drawback I can see to this new container would be the inability to handle it as roughly as a water bottle; since the water is just held in place with a thin double membrane, it might easily pop. Article here.
Environmental Article: An Alternative to Plastic Water Bottles?