The sleek Design World widget, below, is a calculator that has windpower conversions that account for density of air, wind velocity and area wind to calculate power (watts) as well as hydropower functions for theoretically available power. Also, this widget has a carbon dioxide emission calculator based on fuel types, specific energy content, specific mass Carbon and specific mass Carbon Dioxide. You can get this widget, share it and embed it by clicking the button on the widget for options.

Note: If the widget isn't visible click on 'Design World', above.