Microalgae are a type of algae that are microscopic in size. They are one of the most diverse groups of organisms on the planet, and can be found in nearly all environments, from fresh water to marine environments. Microalgae are an important source of food for many aquatic creatures, and also play a role in the global carbon cycle.
Some of the emerging trends in microalgae include the use of microalgae for biofuel production, the use of microalgae for wastewater treatment, and the use of microalgae for food and feed production.