Frontotemporal dementia (FTD) or frontotemporal degenerations refers to a group of disorders caused by progressive nerve cell loss in the brain's frontal lobes (the areas behind your forehead) or its temporal lobes (the regions behind your ears).
Solar thermal (heat) energy is a carbon-free, renewable alternative to the power we generate with fossil fuels like coal and gas. This isn't a thing of the future, either.
Pros. 1  Solar power is a renewable resource. As long as the Sun exists, its energy will reach Earth. 2  Solar power generation releases no water or air pollution because there is no chemical reaction from the combustion of fuels. 3  Solar energy can be used very efficiently for practical uses such as heating and lighting.