While you might recognise algae growing in your fish tank or floating on a lake, it can be transformed into a human food source that can also power your car, and it doesn't compete for space with crops.
Creating liquid biofuels from human waste shows promise as a way to meet one of alternative energy’s greatest challenges: reducing the transportation sector’s heavy carbon footprint. The good news is there is a steady supply stream where waste is treated.
Many futuristic novels and films have explored what the world might look like without water. But water scarcity isn’t a problem for the far-off future: it’s already here.
International attention has homed in on the problem of plastic pollution, which is only growing worse as plastic doesn’t decompose but degrades into smaller pieces that will remain in the environment for thousands of years. Where is this stuff coming from?
