Business
One of the largest producers of carbon emissions is air travel, yet many view flying as a necessary enabler of tourism and international business. One promising way for consumers to take responsibility for their carbon emissions ...
Jan 27, 2022
1
27
Engineering
Air pollution levels remain dangerously high in various parts of the world. According to the World Health Organization, 9 out of10 people breathe air containing high levels of pollutants, such as particulate matter and nitrogen ...
Oct 1, 2019
0
0
Business
Travelers aboard Delta Air Lines are about to have fewer options when it comes to airports in major metro areas.
May 11, 2020
0
7
Business
Singapore Airlines on Friday reported a record net loss for its fiscal second quarter as the carrier continued to reel from the impact of the coronavirus pandemic on global air travel.
Nov 6, 2020
0
0
Business
An American aviation firm said on Friday it had taken over Iceland's bankrupt airline WOW Air together with local investors and said flights would resume in October.
Sep 6, 2019
0
35
Business
Air France is taking new cost-cutting measures, including a partial hiring freeze, to offset the impact of the coronavirus outbreak on the travel sector, according to an internal letter obtained by AFP.
Feb 27, 2020
0
5
Business
Africa's travel and tourism industry has lost $55-billion due to the closure of borders to limit the spread of coronavirus, the African Union said Thursday.
Jul 2, 2020
0
8
Energy & Green Tech
At a new playground in central Warsaw, algae feast on pollutants and carbon dioxide to provide a bubble of clean oxygen in a city ranked as one of the most polluted capitals in the EU.
Jul 28, 2021
0
3
Energy & Green Tech
For years, there has been a clear downward trend in battery costs. This development is important since batteries, as key components of electric vehicles and stationary energy storage systems, account for the majority of their ...
Aug 11, 2021
0
126
Business
Rolls-Royce, the British maker of plane engines, said Wednesday it will cut at least 9,000 jobs and slash costs elsewhere, as the coronavirus hammers the aviation sector.
May 20, 2020
0
5
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
