Colorado's air regulators have approved a new rule that will require the state's 18 largest manufacturers to reduce their greenhouse gas emissions, but the plan is receiving pointed criticism from environmental advocates ...
Environment
17 hours ago
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6
Wildfires in California, exacerbated by human-driven climate change, are getting more severe. To better manage them, there's a growing need to know exactly what fuels the blazes after they ignite. In a study published in ...
Earth Sciences
Sep 25, 2023
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1
People in poorer countries are disproportionately suffering from air pollution spewed from the increasing scourge of fires in forests and fields around the world, according to new research published Wednesday.
Environment
Sep 23, 2023
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36
Whether you love them or loathe them, we all depend on bugs. Insects help to pollinate three-quarters of the world's crop varieties, making them a treasured resource.
Plants & Animals
Sep 22, 2023
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1
The western edge of Chicago—including the North and South Lawndale, East Garfield Park, Archer Heights and Brighton Park neighborhoods—experiences up to 32% higher concentrations of nitrogen dioxide (NO2) air pollution ...
Earth Sciences
Sep 21, 2023
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1
A coalition of environmental organizations has accused Southern California air regulators of allowing heavy emitters of smog-forming pollution to avoid hundreds of millions of dollars in federally mandated financial penalties.
Environment
Sep 20, 2023
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28
Stanford research reveals the rapidly growing influence of wildfire smoke on air quality trends across most of the United States. Wildfire smoke in recent years has slowed or reversed progress toward cleaner air in 35 states, ...
Earth Sciences
Sep 20, 2023
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53
As summer turns to fall, many people will be turning off the air conditioning and firing up heaters instead. But traditional heating and cooling systems are energy-intensive, and because they typically run on fossil fuels, ...
Nanomaterials
Sep 20, 2023
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72
The Northern Hemisphere summer brought catastrophic fires and floods to many countries. Down south, the winter was the hottest ever recorded in Australia, fueled by record ocean temperatures.
Environment
Sep 18, 2023
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0
Thailand must ban stubble burning by farmers to improve air quality, the head of a leading agricultural body said Monday, after a spike in dangerous pollution left millions needing medical treatment.
Environment
Sep 18, 2023
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1
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
