caused excitement as they appeared as four lines in tight formation.
Climate change is occurring and it is largely attributable to human activity, but it has nothing to do with contrails
, which are visible lines that emanate from jet exhaust at high altitudes, given sufficient water vapor present.
Many of us often wonder why some airplanes leave contrails
that can last seemingly forever, while others leave a contrail
that doesn't last but a few seconds.
The NASAs newly unleashed report has asserted that biofuels reduce aircraft-generated particle emissions by 50% to 70%, trimming damaging contrails
During flight tests in 2013 and 2014 near NASA's Armstrong Flight Research Center in Edwards, California, data was collected on the effects of alternative fuels on engine performance, emissions and aircraft-generated contrails
at altitudes flown by commercial airliners.
CoCiP is a Lagrangian model that traces individual contrails
forming behind aircraft flying along given flight routes for given ambient meteorology.
first fine contrails
scratching vacant sky), same dislike to sit while
The report, ordered by Agriculture Minister Nicos Kouyialis back in February, determined that contrails
(short for condensation trails) are responsible for the phenomenon observed where white trails crisscross the sky, sometimes lingering there for hours.
They say that normal contrails
left by aircraft dissipate relatively quickly, and contrails
that do not dissipate must contain additional substances.
left by a mystery jet plane were spotted over the region on Tuesday morning.
and aircraft-induced cirrus clouds are reputed being the largest components of aviation-induced global warming, even greater than carbon dioxide ([CO.
There were no wings, no audible sound, no propellers, no finnedempennage, no smoke, no contrails