Energy & Green Tech

Industry must prepare now for a new world of green electricity

Industry must speed up investment in new technologies that allow manufacture of materials using renewable electricity if net zero emissions targets are to be met, research led by the University of Leeds warns.

Energy & Green Tech

Philippines torn between LNG and renewable energy

The Philippines must turn to renewable sources to solve its energy crisis, environmental experts urge, as the country comes under pressure from big corporations to buy into liquefied natural gas (LNG).

Energy & Green Tech

France's $35B innovation plan includes nuclear reactor funds

French President Emmanuel Macron on Tuesday unveiled a 5-year, 30 billion-euro ($35 billion) investment plan for developing innovative technology and industrial activity, including building small nuclear reactors, electric ...

Energy & Green Tech

Using heat from underground parking lots to warm apartments

Over a third of the energy used in Switzerland each year goes to heating. And nearly 60% of the heating used in Swiss residential buildings originates from fossil fuels—making Switzerland the biggest such consumer in Europe. ...

Business

Green energy takes hold in unlikely places with Ford project

When Ford revealed plans to ramp up its commitment to the fledgling electric vehicle sector, the automaker chose to create thousands of jobs and pump billions in investments into two states where Republican leaders have vilified ...

Engineering

A supra-photothermal catalyst inspired by the greenhouse effect

Over the past few decades, scientists worldwide have developing a variety of techniques and technologies that can convert carbon dioxide (CO2) into fuel using solar energy. This would ultimately be highly valuable, as it ...

Energy & Green Tech

Making the case for hydrogen in a zero-carbon economy

As the United States races to achieve its goal of zero-carbon electricity generation by 2035, energy providers are swiftly ramping up renewable resources such as solar and wind. But because these technologies churn out electrons ...

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Fossil fuel

Fossil fuels or mineral fuels are fuels formed by natural resources such as anaerobic decomposition of buried dead organisms. The age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds 650 million years. These fuels contain high percentage of carbon and hydrocarbons.

Fossil fuels range from volatile materials with low carbon:hydrogen ratios like methane, to liquid petroleum to nonvolatile materials composed of almost pure carbon, like anthracite coal. Methane can be found in hydrocarbon fields, alone, associated with oil, or in the form of methane clathrates. It is generally accepted that they formed from the fossilized remains of dead plants and animals by exposure to heat and pressure in the Earth's crust over hundreds of millions of years. This biogenic theory was first introduced by Georg Agricola in 1556 and later by Mikhail Lomonosov in the 18th century.

It was estimated by the Energy Information Administration that in 2006 primary sources of energy consisted of petroleum 36.8%, coal 26.6%, natural gas 22.9%, amounting to an 86% share for fossil fuels in primary energy production in the world. Non-fossil sources included hydroelectric 6.3%, nuclear 6.0%, and (geothermal, solar, tide, wind, wood, waste) amounting 0.9 percent. World energy consumption was growing about 2.3% per year.

Fossil fuels are non-renewable resources because they take millions of years to form, and reserves are being depleted much faster than new ones are being formed. The production and use of fossil fuels raise environmental concerns. A global movement toward the generation of renewable energy is therefore under way to help meet increased energy needs.[citation needed]

The burning of fossil fuels produces around 21.3 billion tonnes (21.3 gigatonnes) of carbon dioxide per year, but it is estimated that natural processes can only absorb about half of that amount, so there is a net increase of 10.65 billion tonnes of atmospheric carbon dioxide per year (one tonne of atmospheric carbon is equivalent to 44/12 or 3.7 tonnes of carbon). Carbon dioxide is one of the greenhouse gases that enhances radiative forcing and contributes to global warming, causing the average surface temperature of the Earth to rise in response, which climate scientists agree will cause major adverse effects.

This text uses material from Wikipedia, licensed under CC BY-SA