Ah well ...
This should / will cool things down... 

Mount Etna in Sicily erupts, sending up a plume of ash kilometres high into the sky.Credit:AP
One student, from Trinity College in Dublin, told Irish broadcaster RTE News that her group had just arrived when the volcano erupted, the UKTelegraphreported, prompting their tour guides to yell at them to get back in the minibus.
“The tour guides and bus drivers ran in panic towards the buses and shouted at everyone to get to the buses fast,” the student, Marina, said.
“There were about five buses honking their horns in urgency. We waited for everyone to get on for around 10 minutes. People were taking pictures and there was no clear protocol to get everyone on board,” she said, which caused panic among those already on the bus, who yelled at the drivers to leave.
“People were coughing, some covered their noses and mouths. The atmosphere was confusion, fear and anxiety.”
Must have been all that CO2 in the air ...