Nobody likes potholes, nor do they like the environmental damage associated with the petroleum utilized in traditional asphalt bitumen. That's why scientists are now looking at replacing the latter with a binder derived from everyone's green friend, algae.
Just to be clear, they are not adding algae. They are adding binders produced by algae.
For a second I was hoping they’d bioengineered stromatolite.
Yes, you said it right :