Tribune: The natural gas pipelines snaking under the Sacramento region likely leak a significant amount of methane, a potent greenhouse gas, scientists say.
Methane is a major component of the natural gas that travels from transmission lines to the underground pipelines that deliver it to homes and businesses. The amount that leaks out is relatively small, but scientists say it has a big impact, since methane is about 25 times stronger than carbon dioxide when it comes to trapping heat in the atmosphere....