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They were formed from prehistoric plants and animals that lived hundreds of millions of years ago.

Some coal deposits, however, were formed from freshwater swamps which had very little sulfur in them. These coal deposits, located largely in the western part of the United States, have much less sulfur in them

Fatty acid methyl esters (FAME), known as biodiesel, are products of plant or animal origin whose composition and properties are defined by the European Union in standard EN 14214. There is an exception for the iodine value for Spain, which has been established as 140 rather than the 120 proposed by standard EN 14214.

 The process of converting wind energy to electric energy uses a wind turbine. The wind turbines convert the kinetic energy in the wind into mechanical power. The mechanical power can be used for many things. In the past this meant pumping water, creating ventilation, or grinding food sources. While these things still occur, wind power is also used to generate electricity.      The wind turbine is a tall shaft with several horizontal rectangular blades attached to it. These blades are often covered with stiff material or ratting material. When turned they push against the air, causing pressure, and turning the inner shaft. This shaft connects to a generator which then creates energy.

Solar energy is good for the planet because it is a clean way to produce things we need every day. It doesnt cause pollution because it is nature's own energy and is a 100% renewable resource.

Sunlight is Earth's primary source of energy.

The energy stored in petroleum and other fossil fuels was originally converted from sunlight by photosynthesis in the distant past.[119]

Wind machines were used in Persia as early as 200 B.C

The first windmill for electricity production in the United States was built in Cleveland, Ohio by Charles F Brush in 1888, and in 1908 there were 72 wind-driven electric generators from 5 kW to 25 kW.

The first utility grid-connected wind turbine operated in the UK was built by the John Brown Company in 1954

Biofuelwatch has released a new report, ‘Sustainable Biomass: A Modern Myth’. It explores the certification companies certifying biomass as sustainable, the UK government’s proposed sustainability criteria for biomass, and developer’s ‘promises’ to source sustainable biomass.

Biodiesel can result in significant reductions in a number of air pollutants. In general, reductions are greater as more biodiesel is used, depending on the type of biodiesel (soybean, rapeseed or animal fats) and on the conventional diesel used in the blend.

Lost in the mix are the biofuels, fuels made from biological ingredients instead of fossil fuels. These starting ingredients can range from corn to soybeans to animal fat, depending on the type of fuel being made and the production method.

Ethanol, for instance, is an alcoholic biofuel easily distilled from sugary or starchy plants. It has been used to power cars since Ford’s Model T and, blended into conventional petrol, constitutes about 10% of the fuel burned by America’s vehicles today.

Photovoltaic cells are made of at least two layers of semiconducting material. The first layer has a positive charge; the next layer has a negative charge. When sunlight strikes the cell, the semiconducting material absorbs photons from the light. This process frees electrons from the negative layer, which move to the positive layer. This flow of electrons constitutes an electric current, which can be captured in a circuit connecting the two layers. The electricity generated by a photovoltaic cell can be used directly, stored in batteries or sold back to a utility company.

Solar power is different: although it too uses a lot of space, solar panels can be very well integrated into the urban environment, so they have virtually no impact on land use and cause very little visual pollution.