Natural gas is mostly methane. In my piece on the Cornell study, my subhed was âLeakage of methane from fracking boosts shale gas global warming impact.â I didnât note until several paragraphs later that âNatural gas is composed largely of methane,â which comes from the second sentence of the study itself.
Tornado strength is currently measured on what is called the Enhanced Fujita Scale (adapted from the simpler Fujita Scale in 2007), which gives the tornado a rating from 0 to 5 based on estimated wind speeds and the severity of the damage.
1 Tornado (EF1 â wind up to 110 mph) â Near Merit/Greenville (Hunt County) with an estimated peak wind of 110 mph. 2  The tornado width was 750 yards with a length of 11.1 miles. 3  Four people were injured during this event.4  Tornado (EF1 â wind up to 110 mph) â Near Tira (Hopkins County) with an estimated peak wind of 105 mph. Tornado (EF1 â wind up to 110 mph) â Near Merit/Greenville (Hunt County) with an estimated peak wind of 110 mph. 2  The tornado width was 750 yards with a length of 11.1 miles. 3  Four people were injured during this event. 4  Tornado (EF1 â wind up to 110 mph) â Near Tira (Hopkins County) with an estimated peak wind of 105 mph.