To give the sperm locamotion, the flagella forms from microtubules.A midpece develops and most noteworthy-mitochondria, most of the organelles, move their to support the sperm's locamotion. A cap forms at the head of the sperm that contains digestive enzymes to break down the oocyte membrane and deposit DNA. The DNA is consolidated to the head region, where it can quickly travel into the egg once the sperm has successfully fused with and penetrated the oocyte membrane.
To reduce the amout you can go all solar powered to power your house. Fossil fuel is used to make heat. But now days most homes in the United States Of America use solar power or get electricity from wind mills.