...and then we've got technical issues on this idea too. We wanted to use an autonomous submarine to balance the life in oceans, providing an repopulation of seaweed in area suffering from extinction, based on previous simulational studies. But the biologists we talk about our projects didn't like our idea, is too risk because we can cause an biological accident.

our first idea was create an object capable of separate carbon from oxygen in the CO2 molecule. A kind of "filter" that could clean up the urban air, using an infraestructure integration on lighting poles. But we couldn't find a cheap and efficient way of breaking the CO2.

We started the day deciding our challenge focus and after many ideas we choose the Warming Planet challenge to solve.