Authorities have already grounded more than 250 flights as a volcanic ash cloud from Iceland's Grímsvötn volcano covers British air space. They appear better prepared to limit the fallout after last year's Iceland volcano disruption.
An ash cloud from Iceland's Grímsvötn volcano has already grounded more than 250 flights to and from Scotland and Northern Ireland and is expected to cover all of the United Kingdom's air space by the end of Tuesday.
The eruption of Grímsvötn on Saturday evening is believed to have been 100 to 1,000 times more powerful than that of another Iceland volcano, Eyjafjallajökull, which last April spewed an ash cloud that covered wide swaths of Europe, grounding thousands of flights, stranding travelers for days, and costing the airline industry billions of dollars in lost revenue.
Despite the strength of the Grímsvötn eruption, however, the concentration of ash in the air is much lower than after last year's Eyjafjallajökull eruption and is not expected to wreak as much havoc on air travel overall. Authorities also appear better prepared to limit the fallout after learning lessons from last year.