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April 6-8, 2006 Tornado Outbreak
The April 6-8, 2006 Tornado Outbreak was a major tornado outbreak in the Central and parts of the Southern United States that began on April 6, 2006 and continued until April 8 across at least 13 ... > more -
Richter magnitude scale
The Richter magnitude test scale (or more correctly local magnitude ML scale) assigns a single number to quantify the size of an earthquake. It is a base-10 logarithmic scale obtained by calculating ... > more -
Cyclone Tracy
Cyclone Tracy was a tropical cyclone that devastated the city of Darwin, Australia, from December 24 to December 25, ... > more -
Fossil fuel
Fossil fuels are hydrocarbons, primarily coal, fuel oil or natural gas, formed from the remains of dead plants and animals. In common dialogue, the term fossil fuel also includes ... > more -
Automobile emissions control
Automobile emissions control covers all the technologies that are employed to reduce the air pollution-causing emissions produced by ... > more -
1991 Halloween Nor'easter
The 1991 Halloween Nor'easter, also known as the Perfect Storm, was an unusual and very powerful nor'easter combining an extratropical low and two hurricanes in October of ... > more -
Carbon monoxide
Carbon monoxide, with the chemical formula CO, is a colourless, odourless and tasteless gas. It is the product of the incomplete combustion of carbon-containing compounds, notably in ... > more -
2005 Kashmir earthquake
The Kashmir earthquake (also known as the Northern Pakistan earthquake or South Asia earthquake) of 2005 was a major earthquake whose epicenter was the Pakistan-administered disputed region of ... > more
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