(http://assets.cgsociety.org/nvart/3573_1277671973/1024bound)In a future depleted of fossil fuels and choking on combustion emissions mankind will once again turn to the wind as a source of power. Using Variable Geometry sails, hydrofoil hulls will lift out of the water smoothly, propelling their crew through the seas. Control systems tied into weather sensors will assure that no energy is wasted. Super strong and lightweight materials will even further the benefits. In this image we can see maintenance crews working on a farm of wind turbines with the help of their new sailing vessel.