and whole world is doing it, like they really care :)
btw, notice how activity decreased in 2015 vs. 2014 with oil prices falling
btw, notice how activity decreased in 2015 vs. 2014 with oil prices falling
"The explosion occurred after a pipeline began leaking liquid natural gas[1] (mainly propane and butane), creating a highly flammable cloud that was soon ignited by wheel sparks from two passenger trains heading in opposite directions near the site of the leak. "
That doesn't make sense to me. Either it's natural gas, or propane-butane. Where I live at least, there are requirements for what natural gas is supposed to be. There can be some amout of impurities in it but it's still supposed to be mostly methane.
Maybe they meant that the propane and butane impurities stayed low while methane escaped?