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  2. Environmental impact of aviation - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    Emissions from flights rose by 32% between 2013 and 2018. [24] Aviation GHG emissions within the European Economic Area for the EU ETS, showing the top 10 emitters (2013–2019). [25] Between 1990 and 2006, greenhouse gas emissions from aviation increased by 87% in the European Union. [26]

  3. Pollution in California - Wikipedia

    en.wikipedia.org/wiki/Pollution_in_California

    A view of Los Angeles covered in smog. Pollution in California relates to the degree of pollution in the air, water, and land of the U.S. state of California.Pollution is defined as the addition of any substance (solid, liquid, or gas) or any form of energy (such as heat, sound, or radioactivity) to the environment at a faster rate than it can be dispersed, diluted, decomposed, recycled, or ...

  4. Greenhouse gas emissions by the United States - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_emissions...

    This cap declines annually and applies to large emitters that account for over 80 percent of California's GHG emissions. The California Air Resources Board (CARB) creates an allowance for each ton of carbon dioxide emissions. The number of allowances decreases over time and incentivizes a flexible approach to emissions reduction through trading.

  5. Global Warming Solutions Act of 2006 - Wikipedia

    en.wikipedia.org/wiki/Global_Warming_Solutions...

    AB 32 requires the California Air Resources Board (CARB or ARB) to create regulations and market mechanisms to reduce the state's greenhouse gas emissions to 1990 levels by 2020, a 30% statewide reduction, [3] with mandatory caps beginning in 2012 for significant emissions sources. The bill also allows the Governor to suspend the emissions caps ...

  6. Fuel economy in aircraft - Wikipedia

    en.wikipedia.org/wiki/Fuel_economy_in_aircraft

    In 2018, CO₂ emissions totalled 747 million tonnes for passenger transport, for 8.5 trillion revenue passenger kilometres (RPK), giving an average of 88 grams CO₂ per RPK; [2] this represents 28 g of fuel per kilometre, or a 3.5 L/100 km (67 mpg ‑US) fuel consumption per passenger, on average. The worst-performing flights are short trips ...

  7. Night vision, new helicopters are pushing the frontiers of ...

    www.aol.com/news/night-vision-helicopters...

    The new helicopters are compatible with night vision right out of the factory. ... deadliest and most destructive fires in California, and 2024’s fire season is already more active than the year ...

  8. Aircraft noise pollution - Wikipedia

    en.wikipedia.org/wiki/Aircraft_noise_pollution

    Noise-generating aircraft propeller. Aircraft noise is noise pollution produced by an aircraft or its components, whether on the ground while parked such as auxiliary power units, while taxiing, on run-up from propeller and jet exhaust, during takeoff, underneath and lateral to departure and arrival paths, over-flying while en route, or during landing.

  9. Atmospheric carbon cycle - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_carbon_cycle

    The ratio of the annual increase in atmospheric CO 2 compared to CO 2 emissions from fossil fuel and cement manufactured is called the "airborne fraction.". [ 26 ] The airborne fraction has been around 60% since the 1950s, indicating that about 60% of the new carbon dioxide in the atmosphere each year originated from human sources. [ 10 ]