A good solution to reduce that manmade co2 (3% of the total emisions?) is replace oil/coal plants for Nuclear power, much less expensive than for example tidal power.
I don't know about the USA's oil reserves but europe must buy it from other countries and it is expensive in the long run. If they invest in Nuclear/eolic/solar in the long run i think is economical beneficial.
but this is just me saying from the top of my head...
@Sardauk, atleast the poors from the coastal regions who don't have money to migrate to upper places...









