554: Sea walls won't protect us from our garbage. Stopping polluting gives us our best chance.

Sea wall for Manhattan, like Holland: expensive, huge, likely won't work

Controversial already. Natural solutions might work better.

Let's say they worked.

On Staten Island, Fresh Kills

Also everywhere, all coasts unprotected

Now think of Cancer Alley Gulf coast, oil refineries and global toxic dumps

All that pollution will be dispersed to seas and biosphere

I'd guess hundreds of thousands of years

Think of the suffering

Challenge is more than energy. Also thermodynamics. Everything will disperse.

Best solution: stop using fossil fuels now.

Yes, we'll face problems, but we'll solve switching problems more easily than global garbage.

Not an option: keep going as we are and maybe the problems won't happen.