Business
Delta Air Lines canceled significantly fewer flights Wednesday, and the airline's chief executive said cancellations and delays stemming from a global technology breakdown should end by Thursday.
Jul 24, 2024
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Business
U.S. regulators are investigating why Delta Air Lines failed to recover as quickly as other airlines from a global technology breakdown and whether Delta's treatment of passengers stranded by canceled and delayed flights ...
Jul 23, 2024
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Energy & Green Tech
The struggle to cut emissions is real. Last year, the world emitted more than 37 billion metric tons of carbon dioxide, setting a new record high. As a result, sucking CO2 out of the atmosphere has become an increasingly ...
Jul 22, 2024
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Business
Airlines, including Delta Air Lines, continued to struggle to restore operations two days after a faulty software update caused technological havoc worldwide and resulted in several carriers grounding flights.
Jul 22, 2024
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Business
European planemaker Airbus plans to show off its newest passenger jet with daily flight demonstrations during one of the world's biggest aviation trade fairs. But an ongoing safety and manufacturing crisis has rival Boeing ...
Jul 22, 2024
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Business
Transport providers, businesses and governments on Saturday are rushing to get all their systems back online after long disruptions following a widespread technology outage.
Jul 21, 2024
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Energy & Green Tech
Direct air capture was identified as one of the "seven chemical separations to change the world." This is because although carbon dioxide is the main contributor to climate change (we release ~40 billion tons into the atmosphere ...
Jul 19, 2024
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Energy & Green Tech
Deliveries are getting faster than ever in the U.S., but the faster movement of goods is undercutting the country's climate progress.
Jul 18, 2024
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Engineering
University of South Australia researchers have worked with industry to build a world-first, energy-efficient refrigeration system that could revolutionize how we cool supermarkets, hospitals, abattoirs and other systems.
Jul 18, 2024
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Energy & Green Tech
China is building almost twice as much wind and solar energy capacity as every other country combined, research published Thursday showed.
Jul 11, 2024
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The Earth's atmosphere is a layer of gases surrounding the planet Earth that is retained by the Earth's gravity. It has a mass of about five quadrillion metric tons. Dry air contains roughly (by volume) 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, and trace amounts of other gases. Air also contains a variable amount of water vapor, on average around 1%. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night.
There is no definite boundary between the atmosphere and outer space. It slowly becomes thinner and fades into space. An altitude of 120 km (75 mi) marks the boundary where atmospheric effects become noticeable during atmospheric reentry. The Kármán line, at 100 km (62 mi), is also frequently regarded as the boundary between atmosphere and outer space. Three quarters of the atmosphere's mass is within 11 km (6.8 mi; 36,000 ft) of the surface.
This text uses material from Wikipedia, licensed under CC BY-SA
