Dominion Energy announced Tuesday a major initiative to reduce methane emissions from its natural gas infrastructure by 50...: SALT LAKE CITY — Dominion Energy announced Tuesday a major initiative to reduce methane emissions from its natural gas infrastructure by 50 percent over the next decade. The plan will prevent more than 430,000 metric tons of methane from entering the atmosphere, the equivalent of taking 2.3 million cars off the road for a year or planting nearly 180 million new trees, according to a news release.