I grabbed a couple of renewable windmills at dawn. These wind mills gather energy all through the day and night.
Renewable energy can come from any number of sources, but solar and wind represent the most prolific renewable energy sources.
Environment captures the resources available.
When resources are combined with renewable energy, then we can see how sustainable a solution is going to be.
In deciduous forest, leaves come our each spring. It is a great feeling that spring is returning.