After passing a landmark climate law, Mass. officials now face the hard part: how to wean the state off fossil fuels By David Abel Globe Staff,Updated April 6, 2021, 1 hour ago Email to a Friend David L. Ryan/Globe Staff Over the coming decades, the stateâs largest utilities have plans to spend billions of dollars upgrading a vast network of aging pipes and mains that distribute natural gas, after billions theyâve already spent in recent years. But much of those plans clash with a landmark bill that Governor Charlie Baker signed last month that requires the state to effectively eliminate its carbon emissions by 2050.