Energy & Green Tech

New Zealand to help pay for cleaner cars to reduce emissions

New Zealand's government said Monday it will help pay for lower-income families to scrap their old gas guzzlers and replace them with cleaner hybrid or electric cars as part of a sweeping plan to reduce greenhouse gas emissions.

Energy & Green Tech

Using citizen science for the advancement of solar energy

A team of researchers has used the experience of a participatory strategy to create and launch Generation Solar, a citizen science initiative for research and innovation in solar energy. Generation Solar has been coordinated ...

Energy & Green Tech

We can generate green hydrogen, but how will we store it?

Generating green hydrogen—hydrogen produced from water using renewable electricity—is a seasonal task that relies on factors such as excess water in hydro lakes or wind. Once generated, the next challenge is storage.

Business

Qantas to launch longest non-stop passenger flight

Qantas announced on Monday it will launch the world's longest non-stop commercial flight, with passengers set to spend 19 hours in the air traveling from Sydney to London by the end of 2025.

Automotive

Review: 2022 Rivian R1T vs 2022 Ram 1500

Electrified vehicles are indiscriminate in their automotive expansion. First, it was hatchbacks and sedans, then SUVs. Next up: the pickup. Electric variants of light-duty pickups are being developed by a number of automakers, ...

Energy & Green Tech

You've heard of water droughts. Could 'energy' droughts be next?

Renewable energy prices have fallen by more than 70 percent in the last decade, driving more Americans to abandon fossil fuels for greener, less-polluting energy sources. But as wind and solar power continue to make inroads, ...

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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