Complex sentence: In addition, biopolymers have the potential to cut carbon emissions and reduce CO 2 quantities in the atmosphere: this is because the CO 2 released when they degrade can be reabsorbed by crops grown to replace them: this makes them close to carbon neutral.
Split into simpler sentences: In addition, biopolymers have the potential to cut carbon emissions and reduce CO 2 quantities in the atmosphere. This is because the CO 2 released when they degrade can be reabsorbed by crops grown to replace them, making them close to carbon neutral.