This substance is a complex natural polymer called lignin, and it is the second largest renewable carbon source on the planet after cellulose.
One of many improvements necessary for sustainable production of algal biofuel is the development of better algae.
Olive oil has long been a popular kitchen staple. Yet producing the oil creates a vast stream of wastewater that can foul waterways, reduce soil fertility and trigger extensive damage to nearby ecosystems.
But you can’t just feed plants cookies and donuts to get leaves to pump out more oil.
Despite several major national research initiatives, no one has been able to come up with the breakthrough renewable biofuel technology that would lead to a cheaper alternative to gasoline.
As an alternative to liquid fossil fuels, biodiesel extracted from microalgae is an increasingly important part of the bioenergy field.