Check this discussion of globalization, for me it boils down to considering the advantages and disadvantages of global trade and investment.  Including the huge carbon footprint and environmental destruction it can bring with it.

First and foremost, GHG intensive fuel for trans oceanic shipping should be eliminated.  There is plenty of wind out there to do the job.

One GHG free plan is battery powered ships.  The problem os that powering a ship all the way across oceans with batteries is going to take a lot of battery weight, until they approach 1/3  the energy density of diesel fuel.  Because electric battery propulsion is 3 times the efficiency of diesel propulsion.  

Since the weight is not as much of a problem on ships, will that become feasible as batteries are 1/6 the energy density of diesel fuel?  Maybe.  The best batteries now weigh 125 pounds to go the same number of miles as a gallon of fuel.  Around 8 pounds of fuel.  That puts these batteries around 1/16 the energy density of liquid fuel.

This is why kite sails with ducted fan wind turbines to power ships would work better with the present battery technology.  You would only need enough batteries for a fraction of the trip, they would recharge in favorable winds for segments of the trip, like traveling into a port, that required electric power exclusively. 

The best possible course could be plotted considering wind direction and speed, which would include mainly reaching and running (going across the wind or with it) and going sraight upwind on battery power to save time tacking into the wind in a zig zag course.

This system could work really well for freight at slower speeds or higher speed passenger ships employing hydrofoils to reduce drag due to displacement.   Multiple wind speeds at altitude that kite sails can tap, compared to the surface winds, and the exponential increase in power, would be enough to power a ship.

Batteries could charge and electric thrusters could run, from the kite mounted turbines, while the kite sails provided forward motion directly to the hull.

This could make global trade 100% GHG free.  And cheap to boot.

Now re-regulate electronic market trading and get treaties in place to prevent environmental degradation, like burning rain forests to grow monocrop corn and soybeans, and global trade could be a good thing again.  Labor issues, human rights, and economic based conflict could be addressed ethically once corporate power was reigned in by regulation.

People might even take 100 knot hydrofoil passenger kite sailing ships instead of riding on GHG intensive airplanes?  Maybe.  It would be fuel and GHG free travel.