Power outages linger for millions as another icy storm looms

Utility crews raced Wednesday to restore power to nearly 3.4 million customers around the U.S. who were still without electricity or heat in the aftermath of a deadly winter storm while another blast of ice and snow threatened ...

Common mineral could be key to tackling climate change

Lead researcher UC Civil Engineering Associate Professor Allan Scott, and his team in the United States, United Kingdom and New Zealand, have found a new low-carbon method to produce the common mineral, magnesium hydroxide ...

Chemists describe a new form of ice

Scientists from the United States, China and Russia have described the structure and properties of a novel hydrogen clathrate hydrate that forms at room temperature and relatively low pressure. Hydrogen hydrates are a potential ...

EXPLAINER: The real math behind "net zero" carbon emissions

More than 100 countries—responsible for about two-thirds of the world's heat-trapping gases—have announced plans to cut their greenhouse gas emissions to "net zero" in coming decades to help curb man-made climate change.

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Natural gas

Natural gas is a gas consisting primarily of methane. It is found associated with fossil fuels, in coal beds, as methane clathrates, and is created by methanogenic organisms in marshes, bogs, and landfills. It is an important fuel source, a major feedstock for fertilizers, and a potent greenhouse gas.

Natural gas is often informally referred to as simply gas, especially when compared to other energy sources such as electricity. Before natural gas can be used as a fuel, it must undergo extensive processing to remove almost all materials other than methane. The by-products of that processing include ethane, propane, butanes, pentanes and higher molecular weight hydrocarbons, elemental sulfur, and sometimes helium and nitrogen.

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