Portal:Earth sciences

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The Earth Sciences Portal

Earth seen from Moon
Earth seen from Moon

Earth science or geoscience includes all fields of natural science related to the planet Earth. This is a branch of science dealing with the physical and chemical constitution of the Earth and its atmosphere. Earth science can be considered to be a branch of planetary science, but with a much older history. Earth science encompasses four main branches of study, the lithosphere, the hydrosphere, the atmosphere, and the biosphere, each of which is further broken down into more specialized fields.

There are both reductionist and holistic approaches to Earth sciences. It is also the study of Earth and its neighbors in space. Some Earth scientists use their knowledge of the planet to locate and develop energy and mineral resources. Others study the impact of human activity on Earth's environment, and design methods to protect the planet. Some use their knowledge about earth processes such as volcanoes, earthquakes, and hurricanes to plan communities that will not expose people to these dangerous events.

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Did you know? - show different entries

Photograph of volcano
  • ...that a tuya (pictured) is a type of flat-topped, steep-sided volcano formed when lava erupts through a thick glacier or ice sheet?
  • ...that in the United States, on average tornadoes are around 500 feet (150 m) across, and stay on the ground for 5 miles (8 km)?
  • ...that dust storms can carry large amounts of dust, so much so that the leading edge of one can appear as a solid wall of dust as much as 1.6 km (1 mile) high?
  • ...that the area of the world Ocean is 361 million square  kilometers, its volume is approximately 1.3 billion cubic kilometers, and its average depth is 3,790 meters?
  • ...that three quarters of the earth's atmosphere lies within the troposphere, and the depth of this layer varies between 17 km at the equator and 7 km at the poles?
  • ...that the Mariana Trench is the deepest point in the ocean?

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In the news

14 September 2020 – Climate change in the Arctic
The first discovery of the perfectly preserved remains of a cave bear, believed to be 22,000 to 39,500 years old (Late Pleistocene), is made in Lyakhovsky Islands, Siberia in the thawing permafrost.(AP)
14 September 2020 – Life on Venus
The Jane Greaves-led international scientific team announce that they have detected a gas called phosphine in the atmosphere of Venus that indicates microorganisms may inhabit Earth’s inhospitable neighbor. If confirmed, it would be the first known extraterrestrial life. (Reuters)
11 September 2020 –
A cave-in at a gold mine near Kamituga in South Kivu, Democratic Republic of the Congo, kills at least 50 miners. (The Guardian)
10 September 2020 –
Rio Tinto CEO Jean-Sébastien Jacques and two other senior executives resign amid an enquiry into the destruction of the 46,000 year old Juukan Gorge caves in Western Australia, which is considered an Aboriginal sacred site. Rio Tinto destroyed the ancient rock shelters while expanding the Brockman 4 mine. (The Guardian)
3 September 2020 –
United Nations Secretary General António Guterres urges Japan and other wealthy nations to give up on their reliance on fossil fuels and invest in green energy. Guterres noted that many countries are using green energy to keep global warming at 1.5 °C (2.7 °F). (AP)

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Related topics

For a more comprehensive treatment of topics, see Outline of earth science and Index of earth science articles

Atmosphere Hydrosphere Lithosphere
Biosphere Systems Others
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Featured articles

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Climate change (More...)

Global warming · Rachel Carson · Retreat of glaciers since 1850

Earthquakes (More...)

1949 Ambato earthquake · 1968 Illinois earthquake · 1980 eruption of Mount St. Helens · 1997 Qayen earthquake · 2002 Bou'in-Zahra earthquake · 2005 Qeshm earthquake · 2007–2008 Nazko earthquakes

Volcanoes (More...)

1980 eruption of Mount St. Helens · 2007–2008 Nazko earthquakes · Amchitka · Armero tragedy · Calabozos · Cerro Azul (Chile volcano) · Craters of the Moon National Monument and Preserve · David A. Johnston · Geology of the Lassen volcanic area · Loihi Seamount · Mauna Kea · Mauna Loa · Metacomet Ridge · Mono–Inyo Craters · Mount Cayley volcanic field · Mount St. Helens · Mount Tambora · Nevado del Ruiz · Surtsey · The Volcano (British Columbia) · Upper and Lower Table Rock · Volcano (South Park) · Yellowstone National Park

Other geology (More...)

Mary Anning · Archaea · Archaeopteryx · Cerro Azul (Chile volcano) · Bryce Canyon National Park · Calabozos · Chicxulub crater · Cretaceous–Paleogene extinction event · Charles Darwin · Earth · Ediacara biota · Geology of the Bryce Canyon area · Geology of the Capitol Reef area · Geology of the Death Valley area · Geology of the Grand Canyon area · Geology of the Lassen volcanic area · Geology of the Zion and Kolob canyons area · Global warming · Iridium · Oil shale · The Volcano (British Columbia) · Toronto Magnetic and Meteorological Observatory · Volcanology of Io · Yellowstone National Park

Geography (More...)

Antarctica · Australia · Bryce Canyon National Park · Carlsbad Caverns National Park · Craters of the Moon National Monument and Preserve · Death Valley National Park · Geography of India · Geography of Ireland · National parks of England and Wales · Niagara Falls · Rondane National Park · Shoshone National Forest · Yellowstone National Park · Yosemite National Park · Zion National Park

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