As the Trump administration rolls back environmental and safety rules for the energy sector, government projections show billions of dollars in savings reaped by companies will come at a steep cost: more premature deaths and illnesses from air pollution, a jump in climate-warming emissions and more severe derailments of trains carrying explosive fuels. The Associated Press analyzed 11 major rules targeted for repeal or relaxation under Trump, using the administration’s own estimates to tally how its actions would boost businesses and harm society.The AP identified up to $11.6 billion in potential future savings for companies that extract, burn and transport fossil fuels. Industry windfalls of billions of dollars more could come from a freeze in vehicle efficiency standards that will yield an estimated 79 billion-gallon (300 million-liter) increase in fuel consumption.On the opposite side of the government’s ledger, buried in thousands of pages of analyses, are the “social costs” of rolling back the regulations. Among them:— Up to 1,400 additional premature deaths annually due to the pending repeal of a rule to cut coal plant pollution.— An increase in greenhouse gas emissions by about 1 billion tons (907 million metric tons) from vehicles produced over the next decade — a figure equivalent to annual emissions of almost 200 million vehicles.— Increased risk of water contamination from a drilling technique known as “fracking.”— Fewer safety checks to prevent offshore oil spills.