Global ethane emission rates declined from 1984 to 2010, though increased shale gas production at the Bakken Formation in the U.S. has arrested the decline by half.
Tingkat emisi etana global menurun dari tahun 1984 sampai 2010, meskipun produksi shale gas meningkat di Bakken Formation, A.S. telah menahan penurunan hingga setengahnya.