Among the nature forces, one may tremendously modify the athletes' performances and the sequences of events : the wind. Indeed, its intensity highly influences the speed, depending on the fact if it blows forwards or backwards and may be decisive. That is why million dollars are spent so as to reduce the wind impact in motor racings for example.
Besides, in sailing currents and winds influence the performances, and the races are based on its management.

This element can reach unbelievable speeds and move or even blow off objects (or persons) according to its intensity. Some storms can completely destroy houses, like it already happened in Caribbean islands and in Florida for instance. That is why, the wind is very examined by the meteorological services, so as to anticipate the risks.

Moreover, energy can be created from the wind. Besides, wind-driven energy is environment-friendly, and therefore could be one of the main energies for the future.