Population growth demands an increasing amount of resources such as energy, food and water. This causes a change in the natural conditions of the planet. For instance, the use of fossil fuels to produce energy is the mayor cause of climate change, that result in the rise of the planet's temperature.
Also the use of land for building cities or using it for livestock and crops changes the landscape.
All of this result in changes in wind patterns and the rising of wind speed, especially as a result of the rising temperatures.
