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.
The strength of tornadoes is measured using the Fujita Scale, it ranges from F0 to F5 where F0 tornados cause minimal damage and F5 tornados cause massive damage. Most tornadoes have wind speeds that are less than 100 miles per hour or 161 km per hour. Massive tornadoes can reach wind speed of over 300 miles per hour or 483 km per hour. Next story Statue of Liberty facts â Interesting facts about Statue of Liberty.