Do you think we could make your city sustainable if we take power from the water , wind and sun?

We could make a city self-sustainable, but we also need to put research into more efficient lights and such

and public transportation, like a subway system. Seattle’s city bus system sucks

I think that city's can be much more sustainable and we have the technology to do it know clean energy like wind solar are already able to take over for energy use and it would cost less money to do so its just the willingness of people to change that makes it hard to do so,

I do think so, but right now I don't feel like the technology is good enough yet. For example, solar panels only get power on clear days, but in places like Seattle, those might not come too often. And the problem with getting power from water is that then we disturb fish breeding paths and then disturb everything up the food chain from there. We need to work on these problems before we can really make the transition.

We need to work on conserving energy as well.

Yes i think we would be able to do it, in fact, their is already a building were i live that has a very small footprint on the world, the building is made almost entirely of recycled materials, it is entirely powered by solar energy from solar panels on the roof, the energy is also stored so if the whole city of seattle had a power outage that building would still how power. Another cool feature of this building is they use foaming toilets that use way less water when flushing, they also recycle most of the collected waste and turn it into fertilizer. They also have a sustainable garden on their roof.

It would also take a very long time to make a sufficient subway system in Seattle